Question

find the perimeter of a rectangle whose sides are 4cm and 3cm​

Answer 1

Answer:

Let, l = 4cm

b = 3cm

here, perimeter of a rectangle

=> 2(l+b)

=> 2(4+3)

=> 2 × 7

=> 14

therefore, perimeter of a rectangle is 14 cm

Step-by-step explanation:

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Answer 2

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Find the perimeter of a rectangle whose sides are 4 cm and 3 cm.

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We know that,

Perimeter of rectangle = 2(l + b)

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ = 2(4 + 3)cm

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ = 14 cm

Therefore,

Perimeter of rectangle is 14 cm.

MORE TO KNOW :

Some related formulae :

Perimeter of triangle - a + b + c

Perimeter of Square - 4a

Perimeter of trapezoid - a + b + c + d

Perimeter of parallelogram - 2(a + b)

Area of triangle - 1/2 × b × h

Area of square = a²

Area of trapezoid - $\sf{ \dfrac{a+b}{2}h}$

Area of parallelogram - bh