Janine wants to paint just the sides of a cylindrical potter

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 number, find the number of square centimeters she will need to paint. Explain the method you would use to find the lateral area.

Solution

See, the lateral aarea is given by :

Area of 2 circle top and bottom + Curved area

Since she wants to just paint sides we take the area of curved surface

= 2*Pi*r*h

=2*3.14*(7*45)

=1978.2 cm^2