an 18 foot leans against a wall. The base of the ladder is 9 feet from the wall on the level ground. How many feet up the wall,
to the nearest tenth of a foot, is the top of the ladder
1 answer:
Answer:
15.6
Step-by-step explanation:
We need to use Pythagorean theorem:
hypotenuse ² =( leg 1)² + (leg 2)²
Hypotenuse is 18 ft.
leg 1 = 9 ft.
18² = 9² + (leg2)²
(leg 2)² = 243
(leg 2) = +√243 ≈ 15.6 (ft)
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