Math, asked by suchetnadubey, 9 months ago

A hollow garden roller of 42 cm diameter and length 152 cm
is made of cast iron 2 m thick. Find the volume of the iron
used in the roller.

Answers

Answered by shashankpoojar51

Step-by-step explanation:

radius = 21

volume = pie . 21.21. 152

Now cast iron 2 cm think

so radius of hollowed = 21-2 = 19

volume of hollowed = pie.19.19.152

so volume of iron used = pie .152 ( 21.21 - 19.19) = 3.14 × 152 × (441-361)

= 3.14×152×80

= 38182.4

I hope it helps you, Mark My Answer as Brainliest:-)

Answered by jtg07

Step-by-step explanation:

➡️diameter = 42cm = 21 cm = radius

➡️ length = 152 cm

➡️ thickness = 2cm not 2metre

2 metre thickness is not possible check your question again...

➡️ volume of iron used :( πR²-πr²)l

➡️ π((21+19)(21-19))l

➡️ π (40)(2)×152

➡️ 80×152×π

➡️38201.76 cm²

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A hollow garden roller of 42 cm diameter and length 152 cmis made of cast iron 2 m thick. Find the volume of the ironused in the roller.​

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A hollow garden roller of 42 cm diameter and length 152 cm
is made of cast iron 2 m thick. Find the volume of the iron
used in the roller.