Question

the length of rectangle is twice its breadth. if area of rectangle 520cm². find the length and breadth of rectangle.​

Answer 1

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Given:area of rectangle=520cm²

To Find :L=?,B=?

Solution:L=length of rectangle

B=Breadth of rectangle

L=2B

area of rectangle =L×B

520 = 2B²

B=√260

B=16.124cm

L=2×16.124

=32.249cm

Answer 2

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$\Large{\underline{\underline{\sf{Given:}}}}$

Lenght of rectangle = 2 b

breadth of rectangle = b

Area of rectangle = 520 cm ²

$\Large{\underline{\underline{\sf{Find:}}}}$

Breadth and length of rectangle

$\Large{\underline{\underline{\sf{Solution:}}}}$

Area of rectangle = lenght × breadth

520cm ² = 2b × b

520 cm ² = 2 b²

260 cm = b²

√260 cm = b

2 × 2× √ 13 × 5 = b

4 √ 65 cm = b

32.24cm = b

b = breadth of rectangle { given }

and lenght of rectangle is twice of breadth.

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