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1. |
For safety reasons, the base of a 26-foot ladder should be at least 8 feet from the wall. How high can a 26-foot ladder safely reach? |
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A. |
about 27.2 feet |
B. |
about 22.6 feet |
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C. |
about 24.7 feet |
D. |
about 18 feet |
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Hint |
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2. |
A 15-foot ladder is placed against a house and reaches a second story window. The ladder's base is 9 feet from the house. How far above ground is the window? |
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A. |
12 feet |
B. |
17.5 feet |
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C. |
13 feet |
D. |
6 feet |
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Hint |
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3. |
A 9-foot ladder is placed 4 feet from the base of a building. How high does the ladder reach? |
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A. |
about 7 feet |
B. |
about 9.8 feet |
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C. |
about 8.1 feet |
D. |
about 5 feet |
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Hint |
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4. |
Which of the following are Pythagorean triples? |
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A. |
7, 9, 11 |
B. |
6, 12, 13 |
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C. |
10, 12, 16 |
D. |
9, 12, 15 |
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Hint |
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5. |
The numbers 5, 12, and 13 form a Pythagorean triple. Which of the following is not a Pythagorean triple. |
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A. |
20, 48, 52 |
B. |
15, 22, 23 |
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C. |
15, 36, 39 |
D. |
10, 24, 26 |
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Hint |
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