23.PQRS is a parallelogram. QM is the height from Q to SR and QN is the height from Q
to PS. If, SR=12cm and QM=7.6cm, Find
(a) The area of the parallelogram PQRS.
(b)QN, if PS=8cm.
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Answer:
area of parallelogram =base ×height
base =12cm and height =7.6cm
area of parallelogram =12×7.6=91.2cm²
area of parallelogram =base×height
91.2=8×QN
91.2÷8=QN
11.4cm=QN
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