Grad is a unit of angle measure that is sometimes used in france. one grad is the measure of an angle that cuts off an arc t circumference an a. using measures of circumference and arc length, explain how to make a protractor that measures hat is th of a circle's circumference. an angle that rotates a circle's is 400 grads. (recall that one degree is an angle with vertex at the origin that cuts off tractor has a radius of 4.3 inches, determine the arc length in inches of: gle measuring 50 grads subtends what percent (or fractional part) of a circles e. define a function that converts a number of grads to a number of degrees. explain how you arc that is th of a circle's circumference and every circle's circumference is 360 degrees.) an angle's openness in grads. i. 1 grad i. 10 grads ii. 200 grads iv. 400 grads circumference? explain your answer d. how many degrees are equivalent to 50 grads? 100 grads? 10.2 grads? determined this function.