Question

Find the area of the circular path if radius of outer circle is 10m and inner

circle is 7 m. what will be the cost of cementing it at the cost of 300 Rs per

sq. metre?​

Answer 1

ANSWER

area of outer circle = 160

cost = 48,085 rupees

Step-by-step explanation:

area of outer circle = π×r×r= 3.14×10×10=314

area of inner circle = π×r×r=22/7 × 7×7= 154

area of path= 314-154= 160

COST = 160× 300=48,085