184,615 views
2 votes
2 votes
The slide at the playground has a height of 9 feet. The base of the slide measured onthe ground is 12 feet. What is the length of the slide?

O 15 feet
O 45 feet
21 feet
36 feet

User Berko
by
2.5k points

1 Answer

16 votes
16 votes

Explanation:

this creates a right-angled triangle, with the length of the slide being the Hypotenuse (the side opposite of the 90° angle), and height and base are the legs.

so, we can use Pythagoras

c² = a² + b²

with c being the Hypotenuse, a and b being the legs.

length² = 9² + 12² = 81 + 144 = 225

length = sqrt(225) = 15 ft

User Kees Van Lierop
by
3.2k points
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