# Chapter 7 Test: Angles, Triangles, & Quadrilaterals

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Use this practice test to help you study for the chapter 7 test. Have a pencil and scratch paper ready.

• 1.
• A.

53

• B.

180

• C.

143

• D.

90

C. 143
• 2.

• A.

52

• B.

90

• C.

142

• D.

180

A. 52
• 3.

### What type is angle is shown below?

• A.

Acute

• B.

Right

• C.

Obtuse

• D.

Straight

A. Acute
Explanation
The angle shown below is acute because it measures less than 90 degrees.

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• 4.

• A.

Rhombus

• B.

Parallelogram

• C.

Trapezoid

• D.

Rectangle

C. Trapezoid
Explanation
The given figure is a trapezoid because it has only one pair of parallel sides. A trapezoid is a quadrilateral with one pair of parallel sides and the other pair of non-parallel sides are not equal in length. In this case, the figure has one pair of parallel sides and the other pair of sides are not equal in length, making it a trapezoid.

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• 5.

### Identify the triangle below.

• A.

Obtuse triangle

• B.

Right triangle

• C.

Equilateral triangle

• D.

Acute triangle

A. Obtuse triangle
Explanation
The given triangle is an obtuse triangle because it has one angle that measures more than 90 degrees. In an obtuse triangle, one of the angles is greater than 90 degrees, while the other two angles are acute (less than 90 degrees).

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• 6.

### What is the measure of

• A.

120

• B.

130

• C.

30

• D.

180

A. 120
Explanation
The measure of 120 is the correct answer.

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• 7.

### Which angle(s) is/are congruent to angle A?

• A.

B

• B.

C

• C.

D

• D.

B and D

B. C
Explanation
Remember, congruent means equal.

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• 8.

### Which angle(s) is/are adjacent to angle A?

• A.

B

• B.

C

• C.

D

• D.

B and D

D. B and D
Explanation
Remember that adjacent angles share a border.

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• 9.

### Find the missing angle.

• A.

180

• B.

70

• C.

25

• D.

80

B. 70
Explanation
The sum of the angles in a triangle is always 180 degrees. In this case, we are given three angles: 70, 25, and 80. To find the missing angle, we subtract the sum of these angles from 180. 70 + 25 + 80 = 175. Therefore, the missing angle is 180 - 175 = 5 degrees. However, this answer contradicts the given answer of 70, so there may be an error in the question or the given answer.

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• 10.

### What is the measure of angle A?

• A.

45

• B.

110

• C.

90

• D.

70

D. 70
Explanation
The measure of angle A is 70 degrees.

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• 11.

### What is the measure of angle B?

• A.

135

• B.

45

• C.

90

• D.

180

B. 45
Explanation
Angle B is measured as 45 degrees because it is a right angle. A right angle is defined as an angle that measures exactly 90 degrees. Therefore, since angle B is not a right angle, it cannot be 90 degrees. Additionally, angles less than 45 degrees would not fit the given options. Therefore, the only logical answer is that angle B measures 45 degrees.

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• 12.

### What is the measure of angle C?

• A.

115

• B.

93

• C.

65

• D.

70

C. 65
Explanation
The measure of angle C is 65.

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• 13.

### Identify the polygon below.

• A.

Trapezoid

• B.

Parallelogram

• C.

Triangle

• D.

Rhombus

D. Rhombus
Explanation
The given polygon is a rhombus because it has four equal sides and opposite angles are equal. A rhombus is a quadrilateral with all sides of equal length.

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• 14.

### Identify the triangle below.

• A.

Right scalene triangle

• B.

Right obtuse triangle

• C.

Equilateral acute triangle

• D.

Obtuse isosceles triangle

A. Right scalene triangle
Explanation
The triangle is identified as a right scalene triangle because it has one right angle (90 degrees) and all three sides are of different lengths.

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• Current Version
• Mar 21, 2023
Quiz Edited by
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• Feb 14, 2013
Quiz Created by
Kjdegraff

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