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.
R1 = 5.25 cm R2 = 5 cm
2πR1^2 + 0.25*2*π*5.125 + 2*π*R2^2 = 173.18029 + 8.05033 + 157.07963 = 338.3103 cm^2.
If you knew that the radius of the big circle and the big arcs is 5 cm, what is the area of the yellow region?
