What is the measure of angle A?

What is the measure of angle B?

108 =  angle B

72 = angle A

Step-by-step explanation:

first... know ur info

angle a= angle c

angle z+b+c+d= 360 degrees

first solve:

5y-3=3y+27

simplify (sorry no work shown :(l )

y=15

angle a + c 144

360 - 144 =angle B + C= 216

angle b = 216/2 = 108

i believe that the slope of the line is -5

step-by-step explanation:

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.