Q. 263.6( 5 Votes )

If the exterior angle of a triangle is 130° and its interior opposite angles are equal, then measure of each interior opposite angle is
A. 55°

B. 65°

C. 50°

D. 60°

Answer :

Exterior angle is equal to the sum of opposite interior angles


Then;


Is both interior opposite angles are equal


Let both the interior angle be X


130° = X + X


2X = 130°


X = = 55°

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