# Math Quiz On Triangle Centers! Trivia

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• 1.

### What is the name of the segment that joins the midpoints of the sides of a triangle?

• A.

Median

• B.

Midsegment

• C.

Vertex

• D.

Centroid

B. Midsegment
Explanation
The correct answer is Midsegment. The midsegment is a line segment that connects the midpoints of two sides of a triangle. It is parallel to the third side and is half the length of that side. This segment divides the triangle into two smaller triangles of equal area.

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• 2.

### Which center is equidistant from the vertices of a triangle?

• A.

Incenter

• B.

Centroid

• C.

Circumcenter

• D.

Orthocenter

C. Circumcenter
Explanation
The circumcenter of a triangle is the point that is equidistant from all three vertices of the triangle. It is the center of the circle that passes through all three vertices. Therefore, the circumcenter is the correct answer to the question.

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• 3.

### Which triangle center is the balance point of the triangle?

• A.

Orthocenter

• B.

Incenter

• C.

Centroid

• D.

Circumcenter

C. Centroid
Explanation
The centroid of a triangle is the point of intersection of all three medians. A median is a line segment drawn from a vertex of a triangle to the midpoint of the opposite side. The centroid divides each median into two segments, with the segment connecting the centroid to the vertex being twice as long as the segment connecting the centroid to the midpoint. Therefore, the centroid is the balance point of the triangle as it divides each median into two equal parts.

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• 4.

### What is the name of the segment that joins a vertex to the midpoint of the opposite side in a triangle?

• A.

Midsegment

• B.

Median

• C.

Vertex

• D.

Centroid

B. Median
Explanation
A median is a segment that joins a vertex of a triangle to the midpoint of the opposite side. It divides the triangle into two equal areas and is also the segment where the center of gravity of the triangle lies. Therefore, the correct answer is Median.

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• 5.

### Which center is created by constructing the angle bisectors of a triangle?

• A.

Circumcenter

• B.

Centroid

• C.

Orthocenter

• D.

Incenter

D. Incenter
Explanation
The incenter is created by constructing the angle bisectors of a triangle. The angle bisectors are lines that divide each angle of the triangle into two equal angles. The incenter is the point where these angle bisectors intersect. It is also the center of the circle that can be inscribed within the triangle, touching all three sides.

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• 6.

### What is it called when three or more lines intersect at the same point?

• A.

Concurrent

• B.

Equilateral

• C.

Equiangular

• D.

Conspicuous

A. Concurrent
Explanation
When three or more lines intersect at the same point, it is called "concurrent." This term is used to describe a situation where multiple lines or objects meet or intersect at a common point. In geometry, concurrent lines are often used to solve problems or determine the location of certain points.

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• 7.

### What is the point of concurrency of the altitudes?

• A.

Incenter

• B.

Centroid

• C.

Circumcenter

• D.

Orthocenter

D. Orthocenter
Explanation
The point of concurrency of the altitudes is the orthocenter. The altitudes of a triangle are the perpendicular lines drawn from each vertex to the opposite side. The orthocenter is the point where these altitudes intersect. It is significant because it is the center of the triangle's orthocentric system and has various geometric properties.

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• 8.

### What is the name of the segment drawn from the vertex of a triangle, perpendicular to the opposite side?

• A.

Median

• B.

Midsegment

• C.

Altitude

• D.

Midpoint

C. Altitude
Explanation
The name of the segment drawn from the vertex of a triangle, perpendicular to the opposite side, is called the altitude.

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• 9.

### What is the name of a ray that divides an angle into two equal angles?

• A.

Perpendicular Bisector

• B.

Angle Bisector

• C.

Midpoint

• D.

Median

B. Angle Bisector
Explanation
An angle bisector is a ray that divides an angle into two equal angles. It starts from the vertex of the angle and extends to the opposite side, dividing the angle into two congruent parts. This concept is commonly used in geometry to determine the measure of angles and solve various angle-related problems. The other options, perpendicular bisector, midpoint, and median, are not specific to dividing angles into two equal parts.

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• 10.

### What is the point of concurrency of the medians?

• A.

Incenter

• B.

Orthocenter

• C.

Centroid

• D.

Circumcenter

C. Centroid
Explanation
The point of concurrency of the medians is the centroid. The medians of a triangle are the line segments that connect each vertex to the midpoint of the opposite side. The centroid is the point where all three medians intersect. It is often referred to as the "center of gravity" or "center of mass" of the triangle because it is the balance point where the triangle would perfectly balance if it were cut out of a rigid material. The centroid divides each median into two segments, with the segment connecting the centroid to the vertex being twice as long as the segment connecting the centroid to the midpoint of the opposite side.

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• 11.

### A midsegment's length is _____ that of its parallel side.

• A.

Two-thirds

• B.

Two

• C.

One-half

• D.

One-third

C. One-half
Explanation
A midsegment is a line segment that connects the midpoints of two sides of a triangle. The length of a midsegment is always half the length of the side it is parallel to. Therefore, the correct answer is "one-half".

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• 12.

### What is the point of concurrency of the perpendicular bisectors of a triangle?

• A.

Incenter

• B.

Circumcenter

• C.

Centroid

• D.

Orthocenter

B. Circumcenter
Explanation
The point of concurrency of the perpendicular bisectors of a triangle is known as the circumcenter. The circumcenter is the center of the circumcircle, which is the circle that passes through all three vertices of the triangle. It is equidistant from the three vertices, making it the center of the circumscribed circle. The circumcenter is an important point in a triangle as it has properties that can be used in various geometric constructions and calculations.

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• 13.

### What is the point of concurrency of the angle bisectors?

• A.

Incenter

• B.

Centroid

• C.

Circumcenter

• D.

Orthocenter

A. Incenter
Explanation
The point of concurrency of the angle bisectors is called the incenter. The incenter is the center of the inscribed circle in a triangle, which is the largest circle that can fit inside the triangle. The angle bisectors are the lines that divide each angle of the triangle into two equal parts. The incenter is important in geometry as it has properties such as being equidistant from the sides of the triangle and being the center of symmetry for the triangle's incircle.

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• 14.

### What is the name of a circle that lies outside of the triangle and passes through all vertices of the triangle?

• A.

Inscribed Circle

• B.

Circumscribed Circle

• C.

Orthoscribed Circle

• D.

Round Circle

B. Circumscribed Circle
Explanation
A circle that lies outside of a triangle and passes through all its vertices is called a circumscribed circle. This circle is also known as a circumcircle. It is unique to each triangle and can be used to determine various properties of the triangle, such as its circumcenter and circumradius. The circumscribed circle is commonly used in geometry and trigonometry to solve problems related to triangles.

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• 15.

### This is which formula?

• A.

Midpoint

• B.

Slope

• C.

Distance

• D.

C. Distance
Explanation
The given formula is the distance formula. It is used to calculate the distance between two points in a coordinate plane. The formula is derived from the Pythagorean theorem and involves finding the square root of the sum of the squares of the differences in the x and y coordinates of the two points.

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• 16.

### Which formula is this?

• A.

Slope

• B.

Distance

• C.

• D.

Midpoint

D. Midpoint
Explanation
This formula is the midpoint formula, which is used to find the coordinates of the midpoint between two given points on a line. It calculates the average of the x-coordinates and the average of the y-coordinates of the two points to find the midpoint.

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• 17.

### For what do you use this formula?

• A.

Finding midpoints

• B.

Calculating distance

• C.

Finding slope

• D.

Measuring angle

C. Finding slope
Explanation
This formula is used for finding the slope.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Nov 15, 2011
Quiz Created by
Trivero

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