Find the Volume of da followng solids . Cylinder r=6cm,h=21cm. Can u give the formula? it's hard for me to do.

Answer 1

Yes. Its:

V = πr²h
So it would be like:
V = π(6cm)²(21cm)
V = 2375.04 cm³

You can convert it to square meters like this:

V = 2375.04cm³(1m³/100³cm³) ≈ 2.378e-3m³

Answer 2

The formula for a cylinde

v = π r² h

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Given

r = 6cm
h = 21cm

indert the above values into the formula

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V = π r² h

v = 3.141592654(6²)(21)

v = 3.141592654(36)(21)

squaring 6 x 6 = 36

v = 113.0973355(21)

Multiplying 3.141592654 by 36 = 113.0973355

v = 2375.044046

Multiplying 113.0973355 times 21

v = 2375 rounded

V = 2375 cm

The answer is 2375 cm

Answer 3

GIVEN -
r=6cm
h=21cm

WE KNOW THAT-
volume=3.14*r*r*h
=3.14*6*6*21
=132*18
=2376cubic.cm

VOLUME=2376CUBIC.cm

Answer 4

Others have given solution to this and other problem. My recommendation would be to buy a book on mensuration that gives formula and rationale behind it

Answer 5

V = h*pi*r^2
= 21 * 3.14 * 36 = 2373.84

Answer 6

Lisa follow this formula here too:
volume = base* height
Base = pi*r*r
You must come to 2375 cubic cm

Answer 7

V = Pi * r^2 * h

V = pi * 6^2 * 21
V = pi * 36 * 21
V = 756pi
V = 2375.044 cm^3