Question

Calculate the perimeter and area of a rectangle of 4 cm and
7 cm​

Answer 1

Perimeter of the rectangle = 2(l+b)

                                         =2(7+4) cm

                                         =2 * 11 cm

                                         =22 cm (ANS)

Area of a rectangle = l*b

                              = 7 * 4 cm^2

                              = 28 cm^2 (ANS)

Answer 2

Given :

• Length of the rectangle = 7 cm.
• Breadth of the rectangle = 4 cm.

To find :

• Perimeter of the rectangle.
• Area of the rectangle.

Solution :

• Length = 7 cm.
• Breadth = 4 cm

We know,

${\boxed{\bold{Perimeter=2(length+breadth)}}}$

$\implies\sf{Perimeter=2(7+4)\:cm}$

$\implies\sf{Perimeter=2\times\:11\:cm}$

$\implies\sf{Perimeter=22\:cm}$

Therefore, perimeter of the rectangle is 22 cm.

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We know,

${\boxed{\bold{Area =length\times\: breadth}}}$

$\implies\sf{Area=7\times\:4\:cm^2}$

$\implies\sf{Area = 28\:cm^2}$

Therefore, the area of the rectangle is 28 cm².

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