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Ray SP bisects angle RST.

m<RSP if m<RST = 5/2y degrees and m<PST = (y+5)

M< = The measure of angle

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David

  1. Given: RST = 5Y/2; PST = Y+5.

    RST = 2PST,
    5Y/2 = 2(y+5),
    Multiply both sides by 2:
    5y = 4(y+5).
    5y = 4y + 20,
    5y - 4y = 20,
    Y = 20 Deg.

    y + 5 = 20 + 5 = 25 Deg = PST = RSP.
    .

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    Henry

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