Determine which postulate or theorem can be used to prove that lmn nol.

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

Sole the equation 6n + 9 = -3n - 21 - 6 for n