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Question

Three angles which add upto 180o are in the ratio 2:3:7. Find them.

Solution
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Let the 3 angles be 2x,3x,7x
So, 2x+3x+7x=180o12x=180ox=15o

So, Angles will be 2x=215=30o3x=315=45o7x=715=105

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