Mid-chapter Quiz Answers n491t

NAME

DATE

8

PERIOD

Chapter 8 Quiz 1

SCORE

(Lessons 8-1 and 8-2) 1.

8 √ 3

2.

x = √ 85 , 15 y = 2 √

For Questions 2 and 3, find x and y. 2.

3. x

y

y

x

5

8

12

4. Find x.

3.

9 x

4 Geo-AS07-74-860180

NAME

DATE

PERIOD SCORE

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

(Lessons 8-3 and 8-4) For Questions 1 and 2, find x. 2.

6 45°

1.

3 √ 2

2.

3 2 √

6

x 60°

30°

For Questions 3 and 4, find x to the nearest tenth. 3.

Geo-AS07-77-860180 11

x°

4.

acute

5.

Chapter 8 Quiz 2

x

√ 137

4.

5. The measures of the sides of a triangle are 19, 15, and 13. Use the Pythagorean Theorem to classify the triangle as acute, Geo-AS07-76-860180 obtuse, or right.

1.

8

Geo-AS07-75-860180

11

8

81 x = √ 17 , y = −

Geo-AS07-78-860180

x

3.

57.8

4.

14.6

5. A rectangle has a diagonal 20 inches long that forms angles of 60° and 30° with the sides. Find the perimeter of the rectangle.

5.

20 √ 3 + 20 in.

6. Find sin 52°. Round to the nearest ten-thousandth.

6.

0.7880

7. If cos A = 0.8945, find m∠A to the nearest degree.

7.

27

31°

13

17

Geo-AS07-79-860180

Geo-AS07-80-860180

8. The distance along a hill is 24 feet. If the land slopes uphill at an angle of 8°, find the vertical distance from the top to the 8. bottom of the hill. Round to the nearest tenth. 9 S R 9. Use a calculator to find the 10. Use a calculator to measure of ∠T to the find the measure 9. nearest tenth. of ∠T to the nearest S tenth. 24 21√3

71

10.

3.3 ft 27.1 22

R T Chapter 8

T

51

Glencoe Geometry

C08-021A-890517-A

Assessment

1. Find the geometric mean between 12 and 16.