Asked by Alexa

Janine wants to paint just the sides of a cylindrical pottery vase that has a height of 45 cm and a diameter of16. Janine wants to paint just the sides of a cylindrical pottery vase that has a height of 45 cm and a diameter of 14 cm. To the nearest whole number, find the number of square centimeters she will need to paint. Explain the method you would use to find the lateral area.

Lateral Area: 2π * r * h
2π * 7 * 14 = 196π = 615.75 cm^2


Am I doing it correctly? If so what should be my next step?
Answered by Steve
Looks good, except the h=45, not 14
Answered by Alexa
2π * 7 * 45 = 630π = 1978.2cm^2 then would that be my final answer?
Answered by Steve
not bad, except that you did not follow instructions:

<u>To the nearest whole number</u>

Oh, that and the fact that

2π * 7 * 45 = 1979.2

You apparently approximated π by 3.14
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