Question

ZA and ZB are supplementary angles. If mZAZB = (7x – 26)°, then find the measure of ZA.

Answer 1

the sum of two supplementary angles is 180 degrees

$m\angle A+m\angle B=180$

7x+10+7x-26 = 180

14x = 180 + 16

x = 196/14

x = 14

so the value of m7x+10

= 7(14) + 10

= 98 + 10

= 108

m