Question

if the angle formed at the centre of a circle with radius r is 1. What is the area​

Answer 1

Answer:

Step-by-step explanation

Let the angle be theta

As we know that it in the circle the centre of circle is at 360 degree therefore theta equal to 360 degree

As we know area of circle equal to Pi r square and here it is given equal to 1 centimetre there for area of circle equal to 22 by 7 into 1 square which is equal to 22 by 7 or pi

Hope this will help you

Answered by an FIITJIAN

Answer 2

Step-by-step explanation:

Area = π r2 (C/360)

$\pi r {}^{2} ( \frac{c}{360} )$

where:

C is the central angle in degrees

r is the radius of the circle of which the sector is part.

π is Pi, approximately 3.142

This is the method used in the animation above.