Question

what is the formula of curved surface area of wire​

Answer 1

Answer:

2πrh

Step-by-step explanation:

wire can be taken as cylinder

curve surface area of cylinder is

2πrh

Answer 2

The curved surface area of the wire is 2πrh

Step-by-step explanation:

The wire is in the shape of cylinder

therefore

let the radius be r

and the height of the wire be h

thus

The radius 'r' of a cylinder is the radius of its base.

Now, the area of the rectangle = length × breadth.

2πr is the circumference of the circle and h is the height.

Area of the curved surface will be = 2πr × h = 2πrh.

i.e The curved surface area of the wire is 2πrh

#Learn more :

What is the formula for the curved surface area and the total surface area of a hemisphere?

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