3. Find the angle and hence the shaded area when: a) AB = 10 cm, r = 10 cm
b) AB = 8 cm, r = 5 cm​

a)ab=10cm,r=10

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere