Question

what is perimeter of parallelogram whose opposite sides are 12 cm and 8 cm?​

Answer 1

Answer:

Opposite sides of a parallelogram are equal.

Perimeter = sum of all sides. So, 12cm+5cm+12cm+5cm=34cm.

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Answer 2

$\large \rm {\underbrace{\underline{Elucidation:-}}}$

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$\sf \red {\underline{\underline{Provided\: that:}}}$

➻Opposite sides of a parallelogram are 12cm and 8cm

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$\sf \blue {\underline{\underline{To\: Determine:}}}$

➻The perimeter of a parallelogram=?

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$\sf \pink {\underline{\underline{We\: Know:}}}$

➻perimeter of a parallelogram=2(a+b)

➻where a & b are the two sides of the paralellogram

➻Let a= 12 cm & b=8cm

➻supplanting the given values

$\colon \longrightarrow \tt {perimeter=2(a+b)}$

$\colon \longrightarrow \tt {perimeter=2(12+8)}$

$\colon \longrightarrow \tt {perimeter=2(20)}$

$\colon \longrightarrow \tt \green {\underline{\boxed{perimeter=40cm}}}$

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$\sf \purple {\underline{\underline{Thereupon,}}}$

➻The perimeter of parallelogram whose opposite sides are 12 cm and 8 cm is 40cm respectively.

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