Question

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Answer 1

"In isosceles triangle, the measure of two angles is always same."

Let the third angle be x°.

Therefore, other two angles will be 2x° each.

Now,

According to Angle Sum Property,

Sum of all angles = 180°

x° + 2x° + 2x° = 180°

5x° = 180°

x° = 36°

Now,

The angles will be :

First angle = Second angle = 2x° = 2(36°) = 72°

Third angle = x° = 36°

Hence, the angles are 36°, 72° and 72°.