Question

1. Find the Perimeter of the rectangle whose :
i) Length = 3m
Breadth = 2m
ii) Length = 50m
Breadth = 25m
iii) Length = 150 cm
Breadth = 1 cm
iv) Length = 240 m
Breadth = 180 m

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Answer 1

6 m

Step-by-step explanation:

i. Area of rectangle = Length × Breadth

= 3 m × 2 m

= 6 m (AREA)

May be now you can do the others by your own....

Answer 2

Formula used. :

${ \underline{ \boxed{ \bf{ \pink{Perimeter \: of \: Rectangle=2×(l+b)}}}}}$

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❶ Given :

• Length = 3 m
• Breadth = 2 m

To Find :

• Perimeter= ?

Solution :

$: \implies\sf \: Perimeter = 2 × (l + b)$

$\sf : \implies \: Perimeter = [2 × (3 + 2)] m$

$\sf : \implies \: Perimeter = (2 × 5) m$

$\sf : \implies \red{\: Perimeter = 10 m}$

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❷. Given :

• Length = 50 m
• Breadth = 25 m

To Find:

• Perimeter=?

Solution:

$: \implies\sf \: Perimeter = 2 × (l + b)$

$\sf : \implies \: Perimeter = [2 × (50 + 25)] m$

$\sf : \implies \: Perimeter = (2 × 75) m$

${\sf {: \implies{\red {\: Perimeter = 150 m}}}}$

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❸. Given :

• Length = 150 cm
• Breadth = 1 cm

To Find :

• Perimeter=?

Solution :

$: \implies\sf \: Perimeter = 2 × (l + b)$

$\sf : \implies \: Perimeter = [2 × (150 + 1)] cm$

$\sf : \implies \: Perimeter = (2 × 151) cm$

${ \sf {: \implies\red{Perimeter = 302 cm}}}$

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❹. Given :

• Length = 240 m
• Breadth = 180 m

To Find :

• Perimeter=?

Solution :

$\sf : \implies \: Perimeter = [2 × (240 + 180)] m$

$\sf : \implies \: Perimeter = (2 × 420) m$

${\sf{ : \implies {\red {Perimeter = 840 m}}}}$

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