Pythagorean Theorem

Question

Don is building a loft in his garage. The ladder he is using extends to 10 metres. The loft is 8m from the floor. How far away from the wall should he anchor the ladder?

Answer 1

 

 

X^2 + 8^2 = 10^2

 

x^2 + 64 = 100

 

x^2 = 100 -64

 

x^2 = 36

 

x=6