Question

PQRS is a parallelogram. QM is the height from Q to SR and SN is the height from S to QR. If
SR = 20 cm and QM = 15 cm, find the
a) Area of the parallelogram PQRS.
b) Length of SN if QR = 25 cm.​

Answer 1

Answer:

Given: SR=12cm, QM=7.6cm, PS=8cm.

Area of parallelogram=base×height

=12×7.6=91.2cm

2

.

Area of parallelogram=base×height

⇒91.2=8×QN

⇒QN=

8

91.2

=11.4cm.

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