Question

What is the answer to this somebody!!!

Answer 1

Use the geometric mean for right triangles as the sides are related to the hypotenuse. 30 - 6 = 24. We need that for our proportion.
`(24)/(x)=(x)/(30)`. We cross-multiply to get
`x^2=720`. Taking the square root of both sides gives us that
`x=12√(5)`, the second choice above.