Area of rectangle

Algebra Level 1

The length of a rectangle with area 54 square centimeters is 9 centimeters. What is the perimeter of the rectangle, in centimeters?

30 6 12 15 24

Diana Ir by Diana Ir , 34, USA

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3 solutions

Ashish Menon
Jun 2, 2016

WIdth = 54 9 = 6 \dfrac{54}{9} = 6 .
So, perimeter = 6 + 9 + 6 + 9 = 30 6 + 9 + 6 + 9 = \color{#69047E}{\boxed{30}} .

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Area of rectangle = = l × b l×b
⇒ 54 = 9 × b \Rightarrow 54=9×b
⇒ b = 6 \Rightarrow b=6
Perimeter of recatngle = = 2 ( l + b ) 2(l+b)
⇒ 2 ( 9 + 6 ) \Rightarrow 2(9+6)
⇒ 30 \Rightarrow \boxed{30}

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Diana Ir
Jan 16, 2016

Area=L X W 54=9 X W W=54/9 W=6 Perimeter=2[L + W] P=2[9 + 6] P=2(15) P=30cm-the perimeter of the rectangle.

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