Question

In fig.8.6 , find angle.ABC and angle angle A and write wich sides of triangle are equal.​

Answer 1

Step-by-step explanation:

From exterior angle theorem :-

angle A + angle B = angle C

angle A + 80° = 130°

angle A = 50°

angle ACB = 180° - 130°

angle ACB = 50°

angle A = angle ACB

BC = AB ( side opposite to equal angles are equal)

Answer 2

Answer:

<ABC=80°

<ACB=180°-130°=50°

<BAC=180°-80-50°=50°

SINCE

<ACB=<BAC

AB=BC(SIDE OPPOSITE TO EQUAL ANGLES)