Question

a painter leans a 20 ft ladder against a building. the base of the ladder is 12 ft from the building. from the nearest foot, how high from the building does the ladder reach?

Answer 1

a^2+b^2=c^2

Answer 2

c=20ft

Answer 3

12^2+b^2=20^2

Answer 4

\[a^{2}+b^{2}=c^{2}\]

Answer 5

sqrt(144-400)=b