Given the figure above, which of the following formulas is not correct?


A. m∠1 = 1/2 (mRW + mSQ)


B. m∠1 = 1/2 (mPT - mRW)


C. m∠2 = 1/2 (mSR + mQW)


D. m∠2 = 1/2 (mQW - mSR)


Note: The capital letters in the equation, are supposed to have arc symbols.