213k views
2 votes
I need help pleaseee!!!

I need help pleaseee!!!-example-1
User Nubaslon
by
5.8k points

1 Answer

0 votes

Answer: x = 57

Explanation:

Since CD = AC, triangle ACD is isosceles, therefore

ADC = DAC

ADC + DAC + 112 = 180

ADC + DAC = 180 -112 = 68

ADC + DAC = 68/2 = 34

DEB = 180 - 34 - 23 = 123 (sum of interior angles of a triangle = 180)

Therefore, x = 180 - 123 = 57 (DEB and x are supplementary angles)

User Steph Rose
by
5.6k points