If m∠A = m∠B and m∠A + m∠C = m∠D, then
m∠B + m∠C = m∠D.


Answer :

Answer:

True. The statement is also equivalent to: If m<B + m<C does not equal m<D, then m<A does not equal m<B and m<A + m<C is not equal to m<D.

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