Question

Please find the result of this sum fast

Answer 1

Answer:C = 100°

D = 106°

B = 80°

Step-by-step explanation:

A + D = 180°(co-interior angles ate supplementary )

D = 180°-74°

=106°

B:C = 4:5

Let B be 4x and C be 5x.

B + C= 180° (co-interior angles are supplementary )

4x + 5x =180°

9x = 180°

x = 20°

So B = 4x = 4 ×20°=80°.

C =5x =5 × 20°= 100°.