Question

one angle of a triangle is equal to 100 degree and the other two are equal. find these angles

Answer 1

Angle sum property angle
It states that sum of all angle of triangle is 180°
So, Let the angle of triangle be a,b,c where a is 100°
a+b+c=180
100+b+c=180
Since b=c
2c=80°
c=40°

So b=c=40°

Answer 2

Hi,

Here's ur answer:-

One angle is 100°

The other angles are equal.

Let them be x each

100°+x+x = 180° (Sum of angles of a triangle =180°)

=> 100°+2x = 180°

=>2x = 180°-100° = 80°

=>x = 40°

So, the rest angles are 40° each

HOPE IT HELPS (^_^)