6. A medicine capsule is in the shape of a
cylinder with tw
o hemispheres stuck to each
of its ends (see Fig. 13.10). The length of
14
the entire capsule is 14 mm and the diameter
of the capsule is 5 mm. Find its surface area.
Fig.
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Step-by-step explanation:
answer is 219.80 or 220 sq mm.
TSA = CSAof hemisphere - CSA of cylinder - CSA of a sphere
= 2pie square + 2 pie rh + 2pie r square
= 2pie r [ r + h + r ]
= 2 pie r [ 2 r + h ]
= 2 ( 3.14 ) ( 2.5 ) [ 2 (2.5 ) + 9 ]
= 5 ( 3 14 ) ( 14 )
= ( 3.14 ) ( 70 )
= 219.80 or 220 square mm
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