Select the correct answer. What is the length of the indicated arc?
r=4
315°
OA. (21)
OB.
1411
c.
3.511
OD
717
E. None of the above

Abcd is a square. what is the measure of angle bac

Which expression gives the exact value of x?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.