A sphere of radius 49 cm is divided into 4 equal parts from center. What would be the total surface area of one of such quarter sphere?
Each quarter shape will consist of curved shape (1/4 area of sphere- 4πr^2) and 2 flat shapes (each 1/2*πr^2), so total area = 1/4*4πr^2+ 2*1/2*πr^2= 2πr^2= 2*3.14*49^2 ≈ 15078 cm^2
A solid sphere of chocolate has a volume of 288Pi . The chocolate is then melted down and reshaped into a solid cube. Assume no chocolate was wasted.
Did the sphere have a greater surface area or does the cube?
Square ABCD is inscribed in a quarter circle O such that B and C are on the arc of the quarter circle. If the quarter circle has a radius equal to 1, what is the area of the square?
A hemispherical is made of steel, 0.25cm thick. The inner radius of the bowl is 5 cm. find the outer curved surface area of the bowl and also find the total surface area and volume.
