A wooden article was made by scooping out a hemisphere from each end of a solid cylinder.if the height of the cylinder is 10cm and it's base radius is of 3.5cm.find the total surface area of the article
Answers
Answer:
Answer
We have
Height of cylinder= 10cm
radius of base= 3.5cm
Total surface area of the article =Curved surface area of the cylinder +2 surface area of a hemisphere
=2πrh+2(2πr
2
)
=2πr(h+2r)
=2×
7
22
×3.5(10+2×3.5)cm
2
=374cm
2
ANSWER:
We have
Height of cylinder= 10cm
radius of base= 3.5cm
Total surface area of the article =Curved surface area of the cylinder +2 surface area of a hemisphere
=2πrh+2(2πr2)
=2πr(h+2r)
=2×722×3.5(10+2×3.5)cm2
=374cm2