Learn How to Find Missing Angles in Triangles

By Team Aakash Byju's | 18th January 2023

Find the value of x in each of the following figures.

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The value of x for images (i), (ii) and (iii) are

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Consider the first triangle labelled as (i). The exterior angle formed by producing a triangle is equal to the sum of the 2 opposite interior angles.

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In image (ii), ∠BCA is a right angle. According to the angle sum property of a triangle which states that the sum of interior angles of a triangle is 180.

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In image (iii), we need to apply the angle sum property of a triangle, according to which

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