If the radius and height of a cylinder is x cm and y cm respectively, then the curved surface area of cylinder.
A. 2πx (x + y) cm2
B. 2π xy cm2
C. π x2y
D. 2π x2y cm2
Answer:B
If the radius and height of a cylinder is x cm and y cm respectively, then the curved surface area of cylinder.
A. 2πx (x + y) cm2 B. 2π xy cm2 C. π x2y D. 2π x2y cm2