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In DeltaPQR,"if "angleP-angleQ=42^(@)and...

In `DeltaPQR,"if "angleP-angleQ=42^(@)andangleQ-angleR=21^(@),"find "angleP,angleQandangleR`.

Text Solution

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The correct Answer is:
`angleP=95^(@),angleQ=53^(@),angleR=32^(@)`
`P-Q=42impliesP=(Q+42),Q-R=21impliesR=(Q-21)`.
`P+Q+R=180^(@)implies(Q+42)+Q(Q-21)=180^(@)impliesQ=53`
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