In the diagram below of triangle HJK, L is a midpoint of H J and M is a midpoint of JK. If LM = 10x – 90, and HK = 10x – 80, what is the
measure of H K?
J
L
M
H
K

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.