Question

what is the formula for area of parallelogram and circle​

Answer 1

Answer:

pi×r²

Step-by-step explanation:

Area of circle =pi×r²

Answer 2

Answer:

The number πis defined as the ratio of the circumference of a circle to its diameter (i.e. to twice its radius), hence the formula

2πr The area of a circle is given by the formula:

A = πr²

To see why, you can divide a circle into a number of equal segments and stack them head to tail to form a sort of parallelogram with 'bumpy' sides. The long sides will be about half the circumference in length - that is

πr, while the height of the parallelogram will be about r

So the area is seen to be about πr².

This approximation gets better the more segments you have, but here's an animated illustration I put together with just 8 segments..

Step-by-step explanation:

Please make as Brainlist answer