how to find this sector angle

Question

Given a circle with r is equal 2cm, can we find the sector's angle?

Soham · Accepted Answer · 2016-02-06T09:54:21.507

1

Nope...its not possible with the information you have provided.

From common sense and observation you can easily say the value of the central angle is in someway related to the opposite arc length (they are directly proportional).

We know $s=r\theta$ (s=length of arc,r=radius,$\theta$ is the central angle.).(if you want prove ask in comment)

Now,if you have the arc length.You can use this formula to find $\theta$.

edited Feb 06 '16 at 09:54

answered Feb 06 '16 at 09:49

Soham

9,990

@user2298766 You can accept the answer by clicking the small green tick mark to acknowledge my answer...thanks!! – Soham Feb 06 '16 at 09:56
I see. Thanks for your help! – user2298766 Feb 06 '16 at 10:46

score 0 · Answer 2 · answered Feb 06 '16 at 09:56

0

No you can't because you can always draw a circle with an arc with any angle

answered Feb 06 '16 at 09:56

bulbasaur

901

I see. Thanks for your help! – user2298766 Feb 06 '16 at 13:16

how to find this sector angle

2 Answers2