Question

One of the angles of a triangle is 100*and the other two are equal .Find measure of each of them

Answer 1

The sum of all angles of a triangle is 180 degree.

One of the angles of the triangle is 100 degree.

Hence, other two angle's sum would be 180 - 100 = 80

Therefore each of the two angles would be 40°.

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Answer 2

The measure of each angle = 40 degrees

GIVEN: One angle of a triangle is 100 and the other two are equal.
TO FIND: Measure each angle.
SOLUTION:

As we know,

A triangle is a polygon with three angles.

Let us assume those angles to be A B and C

We are given in the question,

Angle A = 100

Angle A = Angle B

Also,

According to the Angle Sum Property,

Angle A + Angle B + Angle C = 180 degrees

100 + Angle B + Angle B = 180

2 Angle B = 80

Angle B = 40

Also,

Angle B = Angle C = 40 degrees.

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