Question 41979MathematicsJAMB

A cylinder of height h and radius r is open at one end. Its surface area is

A

2πrh\pi\text{rh}

B

πr2h\pi\text{r}^2h

C

2πrh+2πr+πr2\pi\text{rh} + 2\pi\text{r} + \pi\text{r}^2

D

2πr+πr2\pi\text{r} + \pi\text{r}^2

Step-by-Step Explanation

The surface area of a cylinder open at one end consists of the lateral area and the area of the base. The lateral surface area is calculated as 2πrh, while the area of the base is πr². Therefore, the total surface area is the sum of these two components, resulting in 2πr + πr².

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