Question

$PQRC$ parallelogram, $QM$ is the height form $Q$ to $RC$ and $QN$ is the height from $Q$ to $PS$ . If $RC=12cm$ and $QM=7.6cm$ . Find .
(a) the area of the parallegram $PQRC$
( b ) $QN$ if $PS=8cm$

Answer 1

EXPLANATION

• Area of the parallelogram PQRS = Base× Height

$12cm\times 7.6cm=91.2$ sq cm

• Area = Base × Height

$\Rightarrow 91.2c{m}^2=8cm\times QN$
Or, $QN=\frac{91.2}{8}=11.4$ cm