Question

Angle ACD is an exterior angle of traingle ABC . The measures of Angle A and Angle B are equal . If m angle ACD = 160 degree , find the measures of the angles angle A and angle B class 7​

Answer 1

Answer:

angle a=x,angle b=x,angle c= 160°,angle d= ?

sum of all angles=360°

x+x+160°+d=360

2x+160+d=360

2x+d=360-160

2x+d=200

d=200/2

d=100