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Class 9 RD Sharma Solutions – Chapter 15 Areas of Parallelograms and Triangles- Exercise 15.1
  • Last Updated : 08 Dec, 2020

Question 1. Which of the following figures lie on the same base and between the same parallels. In such a case, write the common base and two parallels:

Solution:

(i) 

ΔPAB and trapezium ABCD are on the same base AB and between the same parallels AB and DC.
Same base = AB
Parallels = AB || DC

(ii) 

Parallelogram ABCD and APQD are on the same base AD and between the same parallels AD and BQ.
Same base = AD
Parallels = AD || BQ



(iii)

Parallelogram ABCD and ΔPQR are between the same parallels AD and BC but they are not on the same base.

(iv)

ΔQRT and parallelogram PQRS are on the same base QR and between the same parallels QR and PS.
Same base = QR
Parallels = QR || PS

(v)

Parallelograms PQRS and trapezium SMNR are on the same base but not between same parallels.

(vi)

Parallelograms PQRS, AQRD, BCQR are between the same parallels. Also, parallelograms PQRS, BPSC, APSD are between the same parallels.

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