Question

a pen stand is cylindrical in shape with the base radius 3.5cm and height 10.5 cm . How much cardboard will be requiref to make 25 such pen stands? Also , find volume of 1 pen stand

Answer 1

Hey ✨✨

Here is your answer,⬇⬇⬇⬇

Step-by-step explanation:

Radius of cylinder = 3.5cm

height of cylinder=10.5 cm

Total surface area of cylinder=2πr(r+h)

2x22/7x3.5(3.5+10.5)⇒22x14=308cm²

for 1 cylinder stand cardboard sheet require = 308 cm²

for 25 = 308 x 25 = 7700 cm²

volume of cylinder=πr²h=22/7x3.5x3.5x10.5=404.25cm³

Hope it helps you!

Answer 2

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