1條f.3 maths題 20分!

12(a) The radius of the sphere is 5/2 mm, so the volume of the capsule is
(4/3)π(5/2)^3 + π(5/2)^2 * 10
= (10/3)(25/4)π + 10(25/4)π
= 250π/3 mm^3

(b) Surface area of the capsule is
= 4π(5/2)^2 + (2)π(5/2)(10)
= 75π mm^2

12(a)The radius of the sphere is 5/2 = 2.5 cmSo, the volume of the capsule= (4/3)π(5/2)^3 + π(5/2)^2 * 10= (4/3)(125/8)π + (250/4)π= 250π cm^3(b) surface area of the capsule= 4π(5/2)^2 + π(5/2)(10)= 50π cm^2