Mathematics · Geometry

In a triangle ABC, if the consecutive exterior angle at vertex A is 5a, and the interior opposite angles are 2a and 30°, find the value of a.

Verified Solution4 OptionsUpdated: October 2026👁️1 View

150°
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310°✓
45°

Correct answer

10°

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In a triangle ABC, if the consecutive exterior angle at vertex A is 5a, and the interior opposite angles are 2a and 30°, find the value of a.

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In a triangle ABC, if the consecutive exterior angle at vertex A is 5a, and the interior opposite angles are 2a and 30°, find the value of a.

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