Find the diameter if the radius is 8-8cm - Maths Q-A

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Standard IV

Mathematics

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Find the diam...

Question

Find the diameter if the radius is $8.8 c m$ .

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Solution

Compute the diameter:
The diameter of a circle is given as $2 r$ .
So the required diameter can be found as
$d = 2 r d = 2 \times 8.8 d = 17.6 c m$
Hence, the required diameter is $17.6 c m$ .

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Q. A copper wire of diameter 6 mm is evenly wrapped on a cylinder oflength 18 cm and diameter 49 cm to cover its whole surface. Find thelength and the volume of the wire. If the density of copper be 8.8 g percu-cm, find the weight of the wire.\lbrack HOTS\rbrack

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Find the diameter if the radius is 8.8cm.

Compute the diameter:The diameter of a circle is given as 2r.So the required diameter can be found asd=2rd=2×8.8d=17.6cmHence, the required diameter is 17.6cm.

Find the diameter if the radius is $8.8 c m$ .

Compute the diameter:
The diameter of a circle is given as $2 r$ .
So the required diameter can be found as
$d = 2 r d = 2 \times 8.8 d = 17.6 c m$
Hence, the required diameter is $17.6 c m$ .