Find the measure of the arc or central angle indicated. Assume that lines which appear to be diameters are actual diameters.

Please please help will give BRAINLIST

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=9, and ac=12, find hc.

Determine whether the angles in each given pair are coterminal. 744°, -336°

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?