Mathematics

Question

HELP
How would I find C? would I have to subtract 180 from 50??
HELP How would I find C? would I have to subtract 180 from 50??

1 Answer

  • Answer:

    m∠C = 115°

    Step-by-step explanation:

    DE≈DF

    ΔDEF is an isosceles triangle ∴ m∠DEF = m∠DFE = 1/2 (180-50) = 65

    ∴ m∠DFB = 180 -65 = 115

    ∵ DCBF is a parallelogram m∠DFB = m∠DCB = 115°

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