Question

A ladder 13m long leans against a wall such that the top of the ladder is 12 m from the ground.how far is the foot of the ladder from the wall​

Answer 1

5

Explanation:

The pythagorean theorem

A^2+B^2=C^2

A^2 =12^2

b^2 is what you need to find

C^2= 13^2

so it's

144+B^2=169

-144 -144

B^2=25

square root of 25 is 5 which is the answer