Question

Find the radius of the base of a cylinder whose curved surface area is 1232 cm2 and height is 28 cm.

Answer 1

Answer:

radius=5.8cm

Step-by-step explanation:

Height = 28cm

area=  1232 square cm

radius = 5.8 cm

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Answer 2

☞ Gɪᴠᴇɴ :-

• Curved Surface Area of Cylinder = 1232 cm²

• Height (h) = 28 cm

☞ Tᴏ Fɪɴᴅ :-

• Radius (r) of the Cylinder

☞ sᴏʟᴜᴛɪᴏɴ :-

We know that,

➢ Curved Surface Area of Cylinder = 2πrh

So,

↣ 2πrh = 1232

↣ 2×π×r×28 = 1232

↣ 56πr = 1232

↣ πr = 1232/56

↣ πr = 22

↣ r = 22/π

↣ r = 22 × 7/22 = 7

↣ r = 7cm

✞ Mᴏʀᴇ Fᴏʀᴍᴜʟᴀs :-

CYLINDER

• Volume of the Cylinder = πr²h

• Total Surface Area = 2πr(h + r)

• Curved Surface Area = 2πrh