In a unit circle, the radian measure of the central angle is equal to the length of the . A:Raduis B:intercepted arc C:Circumfrence D:Diameter

B:intercepted arc

Step-by-step explanation:

Recall from the knowledge of geometry:

That arc (s) = θ * r(1)

Here;

θ is known as the central angle which is measured in radians

r is the radius of the dimensionless

Hence, suppose the unit circle have a radius of 1 m length. Then, it is pertinent to understand that the arc will also varies directly proportional to the central angle.

First you must know this   a∧n * a∧m = a∧(m+n)

Now we will solve this

(7a∧4b) * (8a∧7b∧6) = (7*8) (a∧4*a∧7) (b*b∧6) = 56* a∧(4+7) * b∧(1+6) = 56 a∧11 b∧7

Good luck!!!