Question

1.) The area of a square is 49 square cm. How long is each side?

2.) Anisha's bedroom is 9 m long and 5 m wide. How much carpet will Anisha need to cover the floor of her bedroom?

3.) The length of a rectangular garden is 3 times of its breadth. If the breadth is 10m, find the area of this field.

4.)A rectangular plot of length 12m and breadth 10m is sold at the rate of 1500 per sq m. Find the cost of the plot.​

Answer 1

Answer

1)

Area of square = side x side = 49

let side be a

a x a = 49

a² = 49

a = √49

a = 7 cm

2)

Anisha need 45 m² carpet to cover the floor.

Because her floor was rectangular shape

so, Area of rectangle = length x breadth

= (9 x 5) m²

= 45 m²

3)

Length is 3 times of breadth and breadth is 10m

so, length of rectangle = (3 x 10)m

= 30m

Area of rectangle = length x breadth

= (30 x 10)m²

= 300m²

4)

Length of rectangle = 12m

Breadth of rectangle = 10m

Area of rectangle = length x breadth

= (12 x 10)m²

= 120m²

Cost of the plot = 120 x 1500

= 180000 rupees