Question

9. A hall 15 m by 13 m has a white marble floor. A red carpet
is laid in the centre of the hall leaving 50 cm border area all
around. Find the area and the perimeter of the ca pet.​

Answer 1

Step-by-step explanation:

2(l+b)

2(15+13)

2(28)

=41 ans

Answer 2

length of White Marble = 15m

Breadth of white Marble = 13 m

Area of white Marble = l*b

=15 m * 13 m

= 195 sq m

side of border all around = 50 cm

perimeter of border = 4 * 50 cm

= 200 cm

perimeter of carpet = 200 cm

area of carpet = 195 m * 200 cm ( 1 m = 100 cm)

= 195 m * 2 m ( 2m = 200 cm)

= 390 sq m