Question

Find the perimeter of a 30 m long and 20 m wide rectangular region ?
(a) 100 m (b) 80 m
(c) 50 m (d) 90 m
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Answer 1

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Answer 2

Question :

Find the perimeter of a 30 m long and 20 m wide rectangular region ?

(a) 100 m

(b) 80 m.

(c) 50 m

(d) 90 m

Answer :

➠ Perimeter of the rectangular region = 100m.

Option (a) 100m.

Given :

• Length of the rectangle = 30m.
• Breadth of the rectangular region = 20m.

To find :

➠ The perimeter of the rectangular region.

Solution :

We know that :

$\bigstar{ \underline{ \boxed{ \bf{ \odot \mid perimeter \: of \: the \: rectangle =2( l + b) }}}} \bigstar$

Where,

l(length) = 30m.

b(breadth) = 20m.

Procedure :

➠ Perimeter of the rectangular region = 2( l + b)

➠ Perimeter of the rectangular region = 2(30+20)

➠ Perimeter of the rectangular region = 2(50)

➠ Perimeter of the rectangular region = 100m.

Hence,

Option :

(a) 100m. ${\boxed{\checkmark}}$