Question

the length of a rectangle is twice as long as the width if the width is 12 cm what is the perimeter

Answer 1

Given :-

• Length of rectangle = Twice as long as its width
• Width = 12 cm

To find :-

• Perimeter of rectangle = ?

Solution :-

• Length of rectangle = 12 × 2 = 24 cm

Formula to calculate perimeter of rectangle :-

$\huge\sf\boxed{Perimeter~=~2(l + b)}$

Put the given values :-

$\mapsto$ 2(24 + 12)

$\mapsto$ 2(36)

$\mapsto$ 72 cm

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Know more :-

• Area of rectangle = length × Breadth
• Diagonal = $\sf\sqrt{w^2 + l^2}$
• Area of square = $\sf{a^2}$
• Area of triangle = $\sf{\dfrac{1}{2} \times base \times height}$