| |
| |
1. |
A 14-foot ladder that is placed 5 feet from the base of the vertical rock wall just reaches the top of the entrance of the cave. How high is the cave entrance above the ground? |
| |
|
A. |
about 14.9 feet |
B. |
about 6.2 feet |
| |
|
C. |
about 9 feet |
D. |
about 13.1 feet |
| |
|
Hint |
|
| |
2. |
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? |
| |
|
A. |
about 24.7 feet |
B. |
about 18 feet |
| |
|
C. |
about 27.2 feet |
D. |
about 22.6 feet |
| |
|
Hint |
|
| |
3. |
A 9-foot ladder is placed 4 feet from the base of a building. How high does the ladder reach? |
| |
|
A. |
about 7 feet |
B. |
about 5 feet |
| |
|
C. |
about 8.1 feet |
D. |
about 9.8 feet |
| |
|
Hint |
|
| |
4. |
Sabrina's flying disc was stuck in a tree. In order to get the flying disc down, she used a 25-foot ladder positioned 8 feet from the base of the tree. How high was the flying disc? |
| |
|
A. |
about 23.7 feet |
B. |
about 68.7 feet |
| |
|
C. |
about 17 feet |
D. |
about 33 feet |
| |
|
Hint |
|
| |
5. |
Which of the following are Pythagorean triples? |
| |
|
A. |
9, 12, 15 |
B. |
7, 9, 11 |
| |
|
C. |
10, 12, 16 |
D. |
6, 12, 13 |
| |
|
Hint |
|
|
|