Answer:
Step-by-step explanation:
Given that,
Base radius r = 4 unit
Height h = 5 unit
Constant π = 3.14
Surface Area?
Noted that, the surface area is the curve surface of the cylinder. A cylinder has a curved surface area and two circular area.
Area of the curved surface is
A = 2πrh
A = 2π × 4 × 5
A = 40 × 3.14
A = 125.6 square unit
The curved surface area is 125.6 square unit
I hope this helps: cc sadiku
