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The sum of two angles of a triangle is equal to its third angle . Determine the measure of the third angle.

Posted by Shibani Sushmita 7 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sonali Aggarwal 7 years, 5 months ago

The sum of two angles of a triangle is equal to its third angle. This statement can be represented in the form of equation as-x+x=2x

Sum of angles of a triangle is 180⁰.

Therefore, x+x+2x=180⁰

4x=180⁰

x=180/4

x=45

Third angle is 2x=45*2=90⁰

Ans=90⁰

4Thank You

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