Question

what is the length of missing side?

A. 21.8
B. 26
C. 28
D. 34

Answer 1

Use Pythagorean's Theorem.  $10^{2} + 24^{2} = c^{2}$.  That's $100+576= c^{2}$.  Take the square root of 676 to get that the missing side (which is actually the hypotenuse) is 26.