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Question

In the given figure, AP BQ CR. Prove that ar (AQC) = ar (PBR).
[2 MARKS]


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Solution


Concept : 0.5 Mark
Application : 0.5 Mark
Calculation : 1 Mark

Since ABQ and PBQ lie on the same base BQ and are between the same parallels AP and BQ,

Area (ABQ) = Area (PBQ) ... (1)

Again, BCQ and BRQ lie on the same base BQ and are between the same parallels BQ and CR.

Area (BCQ) = Area (BRQ) ... (2)

On adding equations (1) and (2), we obtain

Area (ABQ) + Area (BCQ) = Area (PBQ) + Area (BRQ)

Area (AQC) = Area (PBR)


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