Answer:
56 because a triangle is always 90 degrees so 90 minus 22 plus 12 equals 56
Step-by-step explanation:
Take the area of the rectangle without the indent, then subtract the area of the indent:
(9)(13) - (5)(8)
Area = 77
True, it has a 90 degree angle. It’s clear as day. And the Pythagorean theorem works perfectly fine with the two legs and hypotenuse