Question

a circular lawn is 50m in diameter. Around it on the side a foothpath 2.5m wide is to be made. find its cost at Rs 1.60 per square m.​

Answer 1

Step-by-step explanation:

Length = 24.5 m

Breadth = 18 m

∴ Area of the rectangle = Length × Breadth

= 24.5 m × 18 m

= 441 m2

(ii) Length = 12.5 m

Breadth = 8 dm = (8 × 10) = 80 cm = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm]

∴ Area of the rectangle = Length × Breadth

= 12.5 m × 0.8 m

= 10 m2

Answer 2

Step-by-step explanation:

Pro abhi ka ans deko maine bhi wahi se kiya hai