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One angle of a triangle 60.The …

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One angle of a triangle 60.The other two angle are in the ratio of 5:7 find the two angle

Posted by Disha Rathore 4 years, 8 months ago

CBSE > Class 07 > Mathematics

1 answers

Abiirami Somasundaram 4 years, 8 months ago

One angle=60°

Let other 2 angles =5x,7x

Sum of 3 angles of triangle =180°

60+5x+7x=180°

60+12x=180°

12x=180-60=120

x=120÷12=10

The other angles are 50°,70°

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