Question

An area of rectangle is 200 centimetre squares and its lenght is 20 centimetres. Its width is a. 86 b. 20 c. 76 d. 56

Answer 1

Explanation:

$area \: of \: rectangle \: = 200 {cm}^{2} \\ length \: = 20 \: cm$

$area \: = \: length \: \times width$

$200 = 20 \times width$

$width = \frac{200}{20}$

$width \: = 10 \: cm$

Answer 2

➤ Answer

• Width of the rectangle = 10cm.

➤ Given

• Area of rectangle = 200cm².

• Length of rectangle = 20cm.

➤ To Find

• The width of the rectangle.

➤ Step By Step Explanation

Given that ⤵

The area of rectangle is 200 cm² and it's length is 20 cm.

We need to find the width of the cuboid.

So let's do it !!

$\maltese\bold{\boxed{\mathfrak{\purple{Area_{(Rectangle)} = Length \times Breadth}}}}$

➠ By substituting the values

$:\longmapsto\sf200 = 20 \times Breadth \\ \\:\longmapsto\sf \cancel\cfrac{200}{20} = Breadth \\ \\:\longmapsto\bf 10cm= Breadth$

Therefore, the width of the rectangle = 10cm.

➤ Extra Formulae

• Area of square => side²

• Perimeter of square => 4 × side
• Area of rectangle => length × breadth

• Perimeter of rectangle => 2(length + breadth)

• Area of circle => πr²

• Circumference of circle => 2πr

__________________________