Question

7. Area of a ring with internal radius 1 cm and
internal radius 2 cm is:​

Answer 1

Answer:

3.14 and 12.57

Step-by-step explanation:

area is πr^2

for radius 1cm

22/7*1*1

which is 22/7 itself

so it is 3.14

for radius 2cm

22/7*2*2

88/7

12.57