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in Triangles by (37.4k points)
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Find the value of ‘x’ in the given triangles.

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Best answer

In ∆CUT, 

∠C = 64°, ∠U = 46° and exterior angle 

∠CTE = x =? ∠C + ∠U + ∠T= 180° 

⇒ 64° + 46° + ∠T = 180° 

⇒ 110° + ∠T= 180° 

⇒ 110° + ∠T – 110° = 180°- 110° 

∠UTC = ∠T = 70° 

∠UTC + ∠CTE = 180° (linear pair of angles) 

⇒ 70° + x° = 180° 

⇒ 70° + x° – 70° = 180°-70° 

∴ x = 110°

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