Question

need some help

Answer 1

\[a ^{2} + b ^{2} = c^{2}\]
18^2 + b^2 = 21 ^2
b = 10.817

Answer 2

A ladder is leaning against a house. The ladder is extended to 10 feet and it 6 feet from the base of the house. How far up the house does the ladder reach?

it should be like this 6^2 +x^2 = 10^2 right

Answer 3

Absolutely correct!

Answer 4

thanks

Answer 5

Glad it helps ^^