Question

66 cm3 of silver is drawn into a wire 1 mm in
diameter. What is the length of wire in metres ?​

Answer 1

Step-by-step explanation:

I have no space in that so I have written dounwards you have to written as usual as you are writing.

Answer 2

Answer:

The length of wire is 84 m .

Step-by-step explanation:

As we know that volume of wire is volume of cylinder

And in given question silver wire is drawn from 66 cubic centimeters of silver.

So, we can equivalent the volume of cylinder with 66 cubic centimeters.

we know that volume of cylinder is π × $r^{2}$ ×1. [ where l= length  and r= radius ]

Given, r= $\frac{1}{2}$mm

i.e. r=0.5 mm

i.e r=0.05 cm

According to question π × $r^{2}$ × 1 = 66

i.e. $\frac{22}{7}$ × $(0.05)^{2}$ ×1 = 66

By solving this question, we get l=8400 cm.

So, length of wire in metres is 84 m.

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