Question

Hi,
Can you help me work out the total outer surface area of this cylinder? The final answer needs to be in pi. This is the diagram:

Answer 1

Answer:

78π m²

Step-by-step explanation:

Formula for surface area of a cylinder is 2(πr²) + (2πr)(h)

r: This is the radius of the circle (3 in your case)

h: The height of the cylinder (10)

2(πr²): This is the area of the 2 circles on each end of the cylinder

(2πr)(h): This is the circumference of the circle, multiplied by the height. This is the cylinder itself (without the ends).

We will substitute r and h for the appropriate values.

2(πr²) + (2πr)(h)

2(π(3²)) + (2π3)(10)

2(9π) + (6π)10

18π + 60π

78π

That is the answer thank you for coming to my brainly explanation

Answer 2

78m²

hope this helps

not nat