Question

the measure of one of the angles of an isosceles triangle is 100 degree .calculate the other two angles.​

Answer 1

Answer:

40° and 40°

Step-by-step explanation:

Given triangle is isosceles triangle so measure of it's two angles is equal.

Let equal angles of isosceles triangle be x.

Sum of all angles of triangle is 180°.

100+x+x=180

100+2x=180

2x = 180-100

2x = 80

x = 80/2

x = 40

so measure of other two angles will be 40° and 40°

Answer 2

First angle is 100°

Let other two equal angle be x.

then 100°+2x = 180°

=180 - 100 = 80

hence x is 40° ...

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