What is the measure in radians for the central angle of a circle whose radius is 9 cm and intercepted arc length is 7.2 cm? enter your answer as a decimal in the box.

Length of an arc is given by:

         ......[1]

where,

r is the radius of the circle

is the angle in radian.

As per the statement:

A circle has a radius of 9 cm.

⇒r =9 cm

It is also given that: intercepted arc length is 7.2 cm

Substitute the given values in [1] we have;

Divide both sides by 9 we get;

Therefore, the measure in radians for the central angle is, 0.8

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09