Mathematics for IGCSE & O level - Mensuration (Section 9 - No. 31)
What do you need to find out to calculate the surface area of the cylinder?
Area of Base
Curved surface area
Radius
Radius and Height
解释
The formula for surface area of cylinder is 2πr² + 2πrh. You need the radius to calculate the area of the circles and radius and height to calculate the curved surface area