Question

find the volume of a cylinder if the circumference of its base is 15.4cm and height 10cm​

Answer 1

Answer:

circumference of circle=

$2\pi \: r$

15.4=2×22÷7×r

15.4×7=44r

107.8÷44=r

2.45=r

r=2.45

volume of cylinder =22÷7 ×2.45×2.45 ×10

=22 ×.35×2.45×10

=22×3.5×2.45

=77×2.45

=188.65