Question

316 cm h
1386 sq. cm. Find the volume of the cylinder.
7. A circular well is dug. Its diameter is 120 cm and its depth is 950 cm. What is the volume of the mud
removed to make the well?​

Answer 1

Answer:

Area of a circle of radius r =πr

2

=1386cm

2

7

22

×r

2

=1386cm

2

r

2

=441cm

2

r=21cm

Circumference of a circle of radius r =2πr

Circumference of circle of radius 21cm=2×

7

22

×21=132cm