CTET Class I to V 2014 Feb Paper

Question : 31 of 150

Marks: +1, -0

The Perimeter of a square is 20 cm. A rectangle has the same width as the square. The length of the rectangle is double its width. The area, in square cm, of the rectangle is

Validate

Solution:

Perimeter of Square

=20 {cm}

Let side of Square

=x {cm}

Therefore,

4 x=20

x=5 {cm}

Width of rectangle

=5 {cm}

Length of rectangle

=2 × 5=10 {cm}

Area of rectangle

=10 × 5=50 {cm}^{2}

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