Total surface area of a hemisphere formula = 2πr 2 + πr 2 = 3πr 2. Hemisphere Volume Formula. Volume of a hemisphere formula = 2/3 (πr 3) Surface Area and Volume of Sphere. Here, Radius = r.

Calculate the volume and surface area of the salt shaker. Total volume of the salt shaker = volume of cylinder + volume of hemisphere. Volume of cylinder = \( \pi r^2 h = \pi \times 1.5^2 \times 5\) ...

Surface area of hemisphere \(= 2πr^2 + πr^2 = 3πr^2\) Example Calculate the volume and surface area of this hemisphere with a diameter of 18 cm. Give answers to the nearest integer.

Surface area of the cube = 6a² = 6 × 7² = 6 × 49 = 294 cm². Curved surface area of the hemisphere = 2πr² = 2 × 22/7 × 3.5² = 77 cm². Area of the base of the hemisphere = πr² ...