Question

answer answer the following question​

Answer 1

Answer:

(A) 3πr²

Step-by-step explanation:

Find the curved surface area of the hemisphere:

Curved Surface area of a sphere = 4πr²

Curved surface area of a hemisphere = 4πr² ÷ 2 = 2πr²

Find the area of the circle:

Since hemisphere has a circle exposed after slicing into half.

Area of circle = πr²

Find the total surface area of the hemisphere:

Therefore total surface area of a hemisphere = 2πr² + πr² = 3πr²

Answer: (A) 3πr²

Answer 2

Answer:

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