Question

A concrete pillar is a cylinder with a radius of 20 cm and a height of 2m
A) find the volume of the pillar
B) find the volume of one of the rods and the volume of steel in the pillar
C) find the volume of concrete contsined in the pillar

Answer 1

h of cylinder = 2m = 200cm
r of cylinder = 20cm

Volume of cylinderical pillar
= πr^2h
= π × 20 × 20 × 200
= 22/7 × 80000
= 1760000/7
= 251428.571 cm^3


{only 1st part of questions is possible to do according to given data}

Answer 2

Step-by-step explanation:

Volume of pillar is = π r square height

=22/7×20×20×200

1760000/7

251428.57cm 3

The answer a. b. c. in photo.

Hope it help you..