Question

The length of a cyclinder is 1.4cm.and the thickness of the capsule is 7mm. The two hemispheres are stucked to its ends. Find the surface area of the capsule.

Answer 1

Answer:

7.7 cm^2

Step-by-step explanation:

Height = 1.4 cm

Diameter = 7 mm = 0.7 cm

Radius = 0.35 cm

Surface area of cylindrical part = 2πrh

                                                   = 2*22/7*0.7*1.4

                                                   = 6.16 cm^2

Surface area of both hemispherical parts = 4πr^2

                                                                     = 4*22/7*0.35*0.35

                                                                     = 1.54 cm^2

Total surface area = 6.16 + 1.54

                               = 7.7 cm^2

Hope this helps!!!!!