Question

Find the area of a parallelogram PQRS, if PQ=24cm and QU=ST=8cm.

Answer 1

in triangle PQR 
PR=24cm
QU=8 cm
area of triangle PQR=1/2 *24*8
                             =96 cm²
now in triangle PRS
ST=8cm
PR=24
area of triangle PRS=1/2*24*8
                             =96 cm²
area of parallelogram =area of triangle PQR +area of triangle PRS
                               =96+96=192 cm²



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