the circumference of the base of a cylinder is 88cm and height is 15cm. Find curved surface area and total surface area.
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ɢɪᴠᴇɴ :-
★ Circumference of base of cylinder = 88cm
★ Height = 15cm
ᴛᴏ ғɪɴᴅ:-
★ curved surface area and total surface area of the cylinder.
sᴏʟᴜᴛɪᴏɴ:-
☞ Circumference of base of cylinder =2πr
Hence, According to the question __
2πr =88
➱ r = 616/44
➱ r = 14 cm
Now,
Curved surface area of cylinder __
= 2πrh
= 2 × π × 14 × 15
= 1320 cm²
Total surface area of cylinder __
= 2πr (h+r)
= 2 × π × 14 ( 15+14)
= 2552 cm²
Hence,
Curved surface area of cylinder = 1320 cm²
Total surface area of cylinder = 2552 cm²
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