How to find the cross sectional area of a wire

Asked by admin @ 22/11/2021 in Mathematics viewed by 320 People

What is the cross-sectional area of a wire if its outside diameter is 0.0625 inch?

Answered by admin @ 22/11/2021

Given that the diameter: d= 0.0625 inch.

So, radius of the wire : r = $\frac{0.0625}{2}$ = 0.03125 inch

Now the formula to find the cross-sectional area of wire ( circle) is:

A = πr²

= 3.14 * (0.03125)² Since, π = 3.14 and r = 0.03125

=3.14 * 0.000976563

= 0.003066406

= 0.00307 (Rounded to 5 decimal places).

Hence, cross-sectional area of a wire is 0.00307 square inches.

Hope this helps you!

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