Question

Find the missing side of the right triangle x=

Answer 1

The true answer is actually \sqrt{65}

Explanation:

4^2+7^2=x^2

Switch sides: x^2=4^2+7^2

After everything is squared: x^2=16+49

So..x^2=65 OR \sqrt{65}

Answer 2

8.06

Explanation:

From the Pythagorean theorem, x = sqrt(4^2+7^2) which is sqrt(16+49) = sqrt(65) = 8.06