9th Grade Angles Test

  • CCSS.Math.Content.HSG
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1) An angle bisector is a line that cuts into how many parts?

Explanation

An angle bisector is a line that cuts an angle into two equal parts. Therefore, the correct answer is 2.

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9th Grade Angles Test - Quiz

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2) What divides a figure into two congruent parts?

Explanation

Bisect is the correct answer because when a figure is bisected, it is divided into two congruent parts. This means that both parts are exactly the same in shape and size. Dissect means to cut apart into pieces, which does not necessarily result in congruent parts. Divide can also result in unequal parts. Circumference refers to the distance around a circle and does not involve dividing a figure into congruent parts.

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3) A liter measures the volume of?

Explanation

A liter is a unit of measurement used to measure the volume of a liquid. It is commonly used to measure the amount of liquid in containers such as bottles, cups, or tanks. The other options, such as an angle, matter, or gas, are not measured in liters.

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4) The SI unit of mass is?

Explanation

The SI unit of mass is the gram. The gram is a unit of measurement for mass in the metric system. It is equal to one thousandth of a kilogram. The gram is commonly used to measure the mass of small objects or quantities of substances.

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5) What is the slope of a horizontal line?

Explanation

A horizontal line has a slope of 0 because it is parallel to the x-axis and does not have any vertical change. The slope of a line represents the ratio of the vertical change to the horizontal change between any two points on the line. In the case of a horizontal line, the vertical change is 0, resulting in a slope of 0.

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6) A reflex angle is?

Explanation

A reflex angle is an angle that measures greater than 180˚ and less than 360˚. It is formed by the extension of one of the sides of the angle beyond a straight line. In this case, the answer given is ">180˚", indicating that a reflex angle is any angle that is greater than 180˚.

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7) The largest prefix in the SI system is?

Explanation

The largest prefix in the SI system is "kilo". This prefix represents a factor of 1000, meaning that any unit of measurement can be multiplied by 1000 when using this prefix. For example, kilogram represents 1000 grams, and kilometer represents 1000 meters. This makes "kilo" the largest prefix in the SI system, as it represents the largest factor of multiplication.

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8) Congruent angles are angles that have the same measure and?

Explanation

Congruent angles are angles that have the same measure and size. The term "size" refers to the magnitude or extent of something. In the context of angles, size refers to the degree of rotation or the amount of turn between the two angles. When two angles have the same measure, it means that they have the same size, indicating that they cover the same amount of rotation or turn. Therefore, "size" is the appropriate term to describe the characteristic of congruent angles.

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9) When lines intersect, they form what?

Explanation

When lines intersect, they form a right angle. A right angle measures exactly 90 degrees and is formed when two lines meet perpendicularly. In this case, the question is asking for the type of angle formed when lines intersect, and the correct answer is a right angle.

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10) The parallel slope to: 2x - 3y = 30 is?

Explanation

The given equation is in the form of Ax + By = C, where A = 2, B = -3, and C = 30. To find the parallel slope, we can rearrange the equation to solve for y: -3y = -2x + 30, then divide both sides by -3 to get y = (2/3)x - 10. The coefficient of x, which is 2/3, represents the slope of the line. Therefore, the parallel slope to 2x - 3y = 30 is 2/3.

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An angle bisector is a line that cuts into how many parts?
What divides a figure into two congruent parts?
A liter measures the volume of?
The SI unit of mass is?
What is the slope of a horizontal line?
A reflex angle is?
The largest prefix in the SI system is?
Congruent angles are angles that have the same measure and?
When lines intersect, they form what?
The parallel slope to: 2x - 3y = 30 is?
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