00:01
Here in the first subpart, we have been given the radius of circle as r is equal to 8 miles.
00:09
Also, we have been given the central angle theta is equal to 5 radiance.
00:16
And we have been asked to find the length of arc that sustains the given central angle.
00:25
So, the length of arc which let us say is equal to s.
00:30
Is equal to question mark.
00:32
Now we have the formula s is equal to r into theta.
00:39
So, substituting the value of r as 8 multiplied by substituting the value of theta as 5, we get s is equal to 40 miles.
00:51
So, the length of the arc that sustains the given central angle is 40 miles.
00:58
In this second question, we have been given the radius of the circle that is r is equal to 2 miles.
01:10
Also, we have been given the central angle of the arc which we say theta is equal to 4 radiance.
01:19
And similarly, here also we have been asked the length of the arc that sustains the given central angle...