Look at the picture and answer, Please show work as well

47 - 90 = 43

43 - 180 = x

x = 137

just keep asking questions until you have a better understanding.

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.