Find the area of a ring whose outer and inner radii are respectively 23cm and 12cm
Answers
Answered by
3
Answer:
area of ring=area of outer circle- area of inner circle
Step-by-step explanation:
area of outer circle-=22/7*(23cm)²
=22/7*529
=1662.57
area of inner circle=22/7*(12cm)²
=22/7*144cm²
=452.57
area of ring = 1662.57-452.57
=1210
Similar questions