Question

find the measure of the third angle of a triangle whose two angles are 55° and 35°​

Answer 1

Given:-

The measure of two angles of a triangle are 55° and 35°

To Find:-

The measure of the third angle.

Solution:-

We know that the interior angles of a triangle is 180°.

Let third angle in all the given triangles be x°.

$\therefore$ $\bf 55° \: + \: 35° \: + \: x° \: = \: 180°$

$\bf x° \: = \: 180° \: – \: 90°$

$\bf x° \: = \: 90°$

The measure of the third angle is 90° [Ans]

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