The degree measure of an arc of a circle with a radius of 4cm is equal to 45 degrees. Scale out the area of the circular

The degree measure of an arc of a circle with a radius of 4cm is equal to 45 degrees. Scale out the area of the circular sector corresponding to this arc.

Given:
The degree measure of an arc of a circle with a radius of 4 cm is 45 °.
Find the area of the circular sector corresponding
this arc:
S = nR2 / 360 * a
S = n4 * 45/360 = 180p / 360 = 2p
n is the number pi, which we do not reveal, since we are not given a specific number in the problem.
R – radius
a is the degree measure of the arc.