Question

I need help with #3. Please help. I have to show all work so please explain

Answer 1

a = 2

Explanation:

Use Pythagorean Theorem:

`a^2+b^2=c^2\\a^2+2.1^2=2.9^2\\a^2+4.41=8.41\\a^2=4\\√(a^2)=√(4)\\a=2`

Therefore, a is 2 meters.