Question

Pythagorean Theorem is what this is on​

Answer 1

Answer:

Not sure what the question is but the equation would be

$c^{2} = a^{2} + b^{2}$

$28^{2} = 20^{2} + b^{2}$

and to find the missing side

784 = 400 + $b^{2}$

b= 19.6

The missing side would be 19.6