Question

Surface area of chili deer

Answer 1

C. 314.2 cm²

Explanation:

Surface area for cylinder

`\text{SA} = 2 \pi r^2 + 2 \pi r h`,
where r is radius and h is height.

`2\pi r^2` comes from two times the area of the circle,
`2 \pi r h` is the area of the curved surface.

Given information:

r = 5 cm

h = 5 cm

Insert the values into the formula and evaluate

`\text{SA} = 2 \pi r^2 + 2 \pi r h\\\text{SA} = 2 \pi (5)^2 + 2 \pi (5)(5)\\\text{SA} = 2 \pi (25) + 2 \pi (25)\\\text{SA} = 50 \pi+ 50\pi \\\text{SA} = 100\pi \approx 314.159\\\text{SA} = 314.2 \text{ cm}^2`