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Question

The angles of a are (x40)o,(x20)o & (x210). Find the value of x also all the angles of the .

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Solution

Given angles of a triangle are (x40),(x20),(x210)
As we know that sum of angles in a triangle is 180
(x40)+(x20)+(x210)=180
5x2=250
x=100
All angles are (x40)=(10040)=60,(x20)=(10020)=80,(x210)=5010=40

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