how many cubic meter of earth must be dug to construct a well 7meter deep and diameter 2.8 meter?
Answers
Answered by
2
initially we have to find the volume of the well.
so height of the well=7m
radius of the well=1.4m (2.8/2)
volume of cylinder= pie×r square×h
22/7 × 1.4 × 1.4 × 7
= 22 × 1.96
= 43.12m^3 (fourty three point one two meter cube)
hope it helped
so height of the well=7m
radius of the well=1.4m (2.8/2)
volume of cylinder= pie×r square×h
22/7 × 1.4 × 1.4 × 7
= 22 × 1.96
= 43.12m^3 (fourty three point one two meter cube)
hope it helped
Answered by
0
h=7
diameter=2.8
radius=2.8/2=1.4
cylinder,s voulume=pie r2 h
pie=22/7
22/7 1.4 1.4 7
=22 1.96
43.12 m3
the gape are multiplication
Similar questions