Mathematics

Question

If m<1=70 degrees and <1 and <2 are supplementary angles . Find m<2

1 Answer

  • Supplementary angles are angles that add up to 180º.
    If m∠1 is 70º, then m∠2 must be an angle that can be added to 70º to equal 180º.
    In other words, m∠1 + m∠2 = 180º.

    Since m∠1 is 70º, we can plug this value in the equation.
    70º + m∠2 = 180º

    To solve, just subtract 70 from both sides, which means 180 - 70 = m∠2.
    180 - 70 = 110
    m∠2 = 110

    The measure of m∠2 is 110º.

    Hope this helps!
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