The measures of three angles of a triangle are in the ratio 1: 2: 3. Then the triangle is

Right angled

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Equilateral

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Isosceles

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Obtuse angled

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Solution

The correct option is A
Right angled

Angles are in ratio 1:2:3

Therefore, angles will be x, 2x, 3x

By using Angle Sum Property x+2x+3x = $180^{\circ}$

x = $30^{\circ}$

Therfore, 3x = $90^{\circ}$

Hence given Triangle is Right Angled Triangle.

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If the measures of the angles of a triangle are in the ratio 1:2:3, then how can the triangle be classified?

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