Mathematics, 19.02.2020 01:03 nsjcbdhcb

Match the following reasons with the statements to complete the following proof.

Given: AD is a straight line and m CBD = m DBE
To Prove: m ABC + m DBE = 180°.

1. mCBD = mDBE Given
2. ABC, CBD are supplementary Definition of supplementary
3. mABC + mCBD = 180° Substitution
4. mABC + mDBE = 180° ...exterior sides in opposite rays

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