Part A: Joe claims the measure of angle 3 is equal to 90 degrees. Is he correct, why or why not?

Part B: State the measure of angle 5 and explain how you know.

Thank you for any help!

Step-by-step explanation:

part A)

he is not correct,

because 72° + angle 3 must equal 180 °

part B)

angle 5 = 72°

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.