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15 June, 08:56

Line BF bisects ∠ABC, m∠ABF = 6x°, and m∠FBC = (2x + 60) °. Choose True or False for each statement.

A. m∠FBC = 45°

A True B False

B. m∠ABC = 180°

A True B False

C. ∠ABF is a right angle.

A True B False

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Answers (1)
  1. 15 June, 12:17
    0
    A false

    B true

    C true

    Step-by-step explanation:

    Bisect means that you will have equal part of angle, so mABF=mFBC, from that we have:

    6x=2x+60

    4x=60

    x=15

    So mABF=6*15=90 and mFBC=2*15+60=90, then mABC=90+90=180. This is ok becaus it is still mABF=mFBC=90.

    Now you can conclude that A is false, and B and C are true.
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