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Find the missing elements of the following parallelograms based on the information provided.
a) Area =121.5 m2, base =16.2m, height =?b) Area =395cm2, height =12.5 cm, base =?
c) Area =351 m2, base =15.6 m, height =?
d) Area 4440 cm2, height =74 cm, base =?
Solution:
Area of parallelogram = A = base x height = b x h
a) A = 121.5 sq m, b = 16.2 m, h = ?
Ans h = $\frac{A}{b} = 1\frac{21.5}{16.2}$ = 7.5 m
b) A = 395 sq cm; h = 12.5 cm, b = ?
Ans b =$\frac{A}{h} =\frac{395}{12.5}$ = 31.6 cm
c) A = 351 sq m; b = 15.6 m, h = ?
Ans h = $\frac{A}{b} = \frac{351}{15.6}$ = 22.5 m
d) A = 4440 sq cm; h = 74 cm, b = ?
Ans b = $\frac{A}{h} = \frac{4440}{74}$ = 60 cm
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