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3 years ago

If a paint can holds 2.5 litres, whats the radius of the can if it has a height of 20 cm?

Mathematics

2 answers:

Sloan [31]3 years ago

3 0

Hello!

2.5 litres = 1,000 * 2.5 = 2,500 cubic cm

volume = π * radius2 * height

2,500 = π * r2 * 20

2,500 / 20π = r^2

(Square Root of) 2,500 / 20π = r^2

6.307 <span>centimeters </span>= r (Radius)

Hope this Helps! Have A Wonderful Day! :)

NNADVOKAT [17]3 years ago

3 0

2.5L(1000cm^3/L)=2500cm^3

V=hπr^2

r^2=V/(hπ)

r=√(V/(hπ)), and V=2500 and h=20cm so

r=√(2500/(20π))

r=√(125/π) cm

r≈6.3cm (to nearest tenth of a cm)

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