Angle 0 is positioned in a circle with its initial ray on the positive x-axis and its terminal ray 1/3 of one complete revolution about the origin, as shown in the following diagram/ What is the measure of angle 0 in degrees and in radius

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?