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In the given figure, AP || BQ || CR. Prove that ar (AQC) = ar (PBR). - CBSE Class 9 - Mathematics

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Question

In the given figure, AP || BQ || CR. Prove that ar (AQC) = ar (PBR).

Solution

Since ΔABQ and ΔPBQ lie on the same base BQ and are between the same parallels AP and BQ,

∴ Area (ΔABQ) = Area (ΔPBQ) ... (1)

Again, ΔBCQ and ΔBRQ lie on the same base BQ and are between the same parallels BQ and CR.

∴ Area (ΔBCQ) = Area (ΔBRQ) ... (2)

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

Area (ΔABQ) + Area (ΔBCQ) = Area (ΔPBQ) + Area (ΔBRQ)

⇒ Area (ΔAQC) = Area (ΔPBR)

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Class 9 (2018 to Current)
Chapter 9: Areas of Parallelograms and Triangles
Ex. 9.30 | Q: 14 | Page no. 164

Video TutorialsVIEW ALL [1]

Solution In the given figure, AP || BQ || CR. Prove that ar (AQC) = ar (PBR). Concept: Triangles on the Same Base and Between the Same Parallels.
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