Question

I need help with #2. Please help. I have to show all work so please explain

Answer 1

b = 18 in.

Explanation:

Since the triangle given is a right triangle, we can use Pythagorean Theorem to solve for b.

`a^2+b^2=c^2\\7.5^2+b^2=19.5^2\\56.25+b^2=380.25\\b^2=324\\√(b^2)=√(324)\\b=18`

Therefore, b is 18 inches.