How are the units of measurement called radiance related to the radius of a circle?

By definition, considering a unit circle (circle centered at origin and of radius 1) the length of an arc is equal to the measurement in radians (the SI unit for measuring angles) of the angle that it subtends (to be opposite to). The length of the arc is equal to the radius of the circle.

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2