Faces of cylinder are circular therefore area must be pi*radius*radius
That is the formula for the top and bottom faces, the circles. However, the main face, the face connecting the two circles, is really a large rectangle bended to fit with the circles. The height of the rectangle is the same as the height of the cylinder. The width of the rectangle is the circumference of the circle (pi * 2 * radius). The formula for a rectangle is width * height. So, the side face is height of cylinder * circumference of circle (pi * 2 * radius.)
1. Find the surface area of the whole cylinder 2. Find the area of one of the two circles on either end of the cylinder 3. Multiply the circle's area by two and subtract their area from the total surface area 4. Now you have the surface area of an unclosed cylinder!
cube root of volume gives side length, then square this to find area of one face.
Its an Cylinder
no is has 2 , 1 on each side.
as you face the motor it is left first cylinder
2 plane faces, 1 curved face
step 1: if its an open cylinder you have to find the area of both circles by doing radios times radios times pie. (pie equals 3.14). you do this for both circles. step 2:then you find radios the radios of the rectangle
It will have 5 faces and so find the area of each face then add them up altogether.