In fig.8.6 , find angle.ABC and angle angle A and write wich sides of triangle are equal.
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In fig.8.6 , find angle.ABC and angle angle A and write wich sides of triangle are equal.
In fig.8.6 , find angle.ABC and angle angle A and write wich sides of triangle are equal.
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Verified answer
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:
<ABC=80°
<ACB=180°-130°=50°
<BAC=180°-80-50°=50°
SINCE
<ACB=<BAC
AB=BC(SIDE OPPOSITE TO EQUAL ANGLES)