Question

A Ladder leans against a 15 foot tall building to form a right angle. The ladder is placed so it is 8 feet from the base of the building. What is the length of the ladder?

Answer 1

Pythagoras says:

L^2 = h^2 + b^2 = 225 + 64

Answer 2

It's a right triangle.
15 is the height.
The width of the triangle is 8 feet.
There is the information that we know.
So, 15*8/2=60.
Do you see where I'm going with this?

Answer 3

A painter leans a 20-ft ladder against a building. The base of the ladder is 12 ft from the building. To the nearest foot, how high on the building does the ladder reach?
a^2 + b^2 = c^2
a^2 + 12^2 = 20^2
a^2 + 144 = 400
a^2 = 256
a = 16

I had to solve this question today. It's close to your question so you can use this as an example on how to solve.

Answer 4

hope you got 17 :)

Answer 5

i GOt 17

Answer 6

Atta go :)

Answer 7

16

Answer 8

12cm