Question

Find the measure of the angle and please explain step by step

Answer 1

angle 4 is the same as angle 8

angle 7 & angle 8 has to equal 180 degree

so angle 7 and angle 4 also have to equal 180

angle 4 is 3 times the size of 7

lets call 7 (x)

so 4(x) = 180

180/4 =45

x=45

angle 7 is 45 degrees