Question

3. If a square with each side 'a' is joined from opposite sides to form a cylinder, then area of each circular end (ignoring units) is (1) a? (2) a²/41 (3) a? ITT (4) a?14 ​

Answer 1

Given

square has each side: a

To find

the area of the circular end of the cylinder

πr²

Solution

Here first, we will think of the square being transformed into a cylinder.

First, two sides of the square need to be joined together

This makes the side equal to the circumference of the newly formed cylinder.

Putting it into a formula

a = 2πr

2πr  = a

r  = a / 2π

Now let us find the area

The are of the cylinder is πr²

Putting the value of r in  πr²

= πr²

=  π (a / 2π)²

= a² / 4π

Therefore, If a square with each side 'a' is joined from opposite sides to form a cylinder, then the area of each circular end is a² / 4π

Answer 2

Answer:

it is wrong

the real answer is a²

Step-by-step explanation:

all are seen this Answer because this question given in

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