Question

An exterior angles of a triangle is 100digree and it's inferior opposite angle are equals to each other. Find the mesure of each interior angle of the triangle.

Answer 1

We know,

exterior angle = sum of opposite interior angles.

Let the angles be A , B , C.

A/q,
 < A + < B = 100⁰

2 < A = 100⁰

< A = < B = 50⁰

Using Angle sum property,

<A + <B +<C = 180⁰

<C = 80⁰

∴<A = <B = 50⁰, <C = 80⁰


Hope it helped!
NISHTHA.