Question

tsa and csa of semi sphere​

Answer 1

Answer:

Step-by-step explanation:

CSA = 2πr^2. The curved surface area of a hemisphere = 2πr^2 square units. The total surface area of the sphere = Curved surface area of sphere + base area. We know that the base of the hemisphere is circular in shape, use the area of the circle.

Total surface area of a hemisphere: A = 3 * π * r² , Surface to volume ratio of a hemisphere: A / V = 9 / (2 * r) .