7. 72 = 6p 2
ANSWER: Practice Test - Chapter 10
3.5, −3.5
8. SPORTS The formula h = 16t2 describes the time t
Find the square root.
1. in seconds that it takes for an object to fall from a
height of h feet. How long would it take a baseball
dropped out of a window from a height of 50 feet to
hit the ground?
ANSWER: 16
ANSWER: 2. 1.8 s
ANSWER: 9. MULTIPLE CHOICE The area of the square
−20
below is 256 square units. Which of the following is
the value of x?
3. Without using a calculator, estimate
to the nearest integer.
ANSWER: −10
A 8
B 11.3
C 16
D 64
Replace each Ο with <, >, or = to make a true
statement.
4. Ο 4
ANSWER: ANSWER: > 5. −6.8 Ο A
Classify the angle as acute, obtuse, right, or
straight.
10. 45°
ANSWER: ANSWER: < acute
ALGEBRA Solve the equation. Round to the nearest tenth, if necessary.
11. 95°
2
6. t = 49
ANSWER: obtuse
ANSWER: 7, −7
12. 180°
ANSWER: 7. 72 = 6p 2
straight
ANSWER: Find the value of x in the triangle. Then classify
the triangle by its angles and by its sides.
3.5, −3.5
8. SPORTS The formula h = 16t2 describes the time t
13. in seconds that it takes for an object to fall from a
height of h feet. How long would it take a baseball
dropped out of a window from a height of 50 feet to
hit the ground?
ANSWER: ANSWER: 124; obtuse isosceles
1.8 s
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9. MULTIPLE CHOICE The area of the square
below is 256 square units. Which of the following is
14. Page 1
ANSWER: ANSWER: Practice
Test - Chapter 10
124; obtuse isosceles
10
19. LADDER A building has a 12-foot-high window. If
14. the bottom of a ladder is 5 feet away from the
building, will a 15-foot ladder reach the window?
Explain.
ANSWER: 65; right scalene
The lengths of three sides of a triangle are
given. Determine whether the triangle is a right
triangle.
15. a = 15, b = 36, c = 39
ANSWER: ANSWER: yes
16. a = 9, b = 15, c = 17
ANSWER: no
Yes; a ladder that is at least 13 ft is needed to reach
the window.
Find the distance between the pair of points.
Round to the nearest tenth, if necessary.
20. Q(−6, 4), R(6, −8)
ANSWER: Find the missing measure. Round to the
nearest tenth, if necessary.
17.0
17. 21. C(5, 9), D(−7, 3)
ANSWER: 13.4
22. MULTIPLE CHOICE What is the perimeter of
ΔGHJ shown?
ANSWER: 37
18. F 7.2 units
G 11.2 units
H 15.7 units
J 16.7 units
ANSWER: 10
ANSWER: 19. LADDER A building has a 12-foot-high window. If
the bottom of a ladder is 5 feet away from the
building, will a 15-foot ladder reach the window?
Explain.
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G
Find the missing measure.
23. Page 2
H 15.7 units
J 16.7 units
ANSWER: Practice
Test - Chapter 10
G
Find the missing measure.
23. ANSWER: x = 24 m; y =
m
24. ANSWER: ft
25. CRAFTS A square piece of fabric 8 inches on
each side is folded in half diagonally. What is the
length of the fold?
ANSWER: in.
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