A wooden article was made by scooping out a hemisphere from each end of a solid cylinder. If the height of the cylinder is 12 cm and its base is 4.2 cm, find the total surface area of the article. Also find the volume. Use π = 22/7
Answers
Answered by
1
Answer:
plz make me as brainlist please
Step-by-step explanation:
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
Similar questions