Question

Find the missing values:So No	Base	Height	Area of parallelogram
a.	20 cm	-	246 $cm^2$
b.	-	15 cm	154.5 $cm^2$
c.	-	8.4 cm	48.72 $cm^2$
d.	15.6 cm	-	16.38 $cm^2$

Answer 1

$Area\; of\; parallelogram = Base × Height$
(a) $b = 20 \;cm, \;h$ = $?$
$Area = 246 \;cm^2$
$20 × h = 246$

$h$ = $\frac{246}{20}=12.3 \;cm$

Therefore, the height of such $parallelogram$ is $12.3$ $cm$.

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(b) $b = ? \;h$= $15 \;cm$
$Area$ = $154.5\; cm^2\; b × 15$

$b = \frac{154.5}{15}=10.3 \;cm$

Therefore, the base of such $parallelogram$ is $10.3$ $cm$.

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(c) $b = ? \;h$ = $8.4\; cm\; Area$ = $48.72\; cm^2$
$b\times h$ = 48.72

= $b$ = $\frac{48.72}{8.4}=5.8 \;cm$

Therefore, the base of such $parallelogram$ is $5.8$ $cm$.

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(d) $b = 15.6\; cm\; h = ?$
$Area = 16.38 \;cm^2$
$15.6 × h = 16.38$

$h= \frac{16.38}{15.6}=1.05\;cm$

Therefore, the height of such $parallelogram$ is $1.05$ $cm$.