Question

Find mTCB in circle P.
128
218
270
308

Answer 1

We know a complete circle is 360 degrees, so given the information we can use this equation to solve our problem.
\[mTB + mTCB = 360\]
\[\rightarrow90 + mTCB = 360\]
\[\rightarrow mTCB = 360 - 90\]
\[\rightarrow mTCB = 270\]
the correct answer is C. 270