If each of the two equal angles of an isosceles triangle is twice the third angle, the measure of the third angle is:

Question

Question

This question was previously asked in

RRB ALP CBT I 29 Aug 2018 Shift 2 Official Paper

Answer 1

Given:

The two equal angles of an isosceles triangle is twice the third angle

Concept used:

In a triangle, the summation of all angles is 180°.

Calculation:

Let the third angle be x degrees

So, the other two angles are 2x degrees.

So,

x + 2x + 2x = 180°

⇒ 5x = 180°

⇒ x = 36°

So, the third angle is 36°

∴ The required answer is 36°.

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