Question

III Solve:-
9. A rectangular cardboard of length 12m and breadth 8m is reshaped into a square. Find the cost
of painting the surface of cardboard at the rate of 25 rupees per sq. m.

Answer 1

sorry can't understand your question properly

Answer 2

₹2,500

Step-by-step explanation:

Perimeter of the Rectangular Cardboard = 2x(l+b) = 2x (12m + 8m) = 40 m

If it's reshaped into a square, each side of the square =

No.of sides square has = 4

= 40 (Perimeter of rectangle) ÷ 4 = 10

•°• Each side of square = 10m

••••••••

Area of square = s x s = Area

= 10 x 10 = 100 Sq.m

Cost per Sq.m = 25 rupees

100 Sq.m = 100 x 25 = 2,500

•°• The cost of painting the surface of the Cardboard is ₹2,500