Please disregard what I put for b, just looking for help, thanks.

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a) mA>m1, so mA>mB, because ACB is isosceles (AC=BC and m1=mB).

b) mD>mB because D is opposite the longer side AB.

c) m3=2mB (external angle of isosceles ∆ACB),

mD=m3=2mB (isosceles ∆ADC),

Therefore, mD>mB.

by Top Rated User (823k points)

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