Question

True or False: (EXPLAIN your answer) If angle CEF is complementary to angle DCF,

then angle DCF is congruent to angle FEG.

Answer 1

True

Explanation:

Givens:

From if part: m<CEF+m<DCF=90

From picture: m<CEF+m<FEG=90

Subtracting the equations we get:

m<DCF-m<FEG=0

Adding m<FEG on both sides:

m<DCF=m<FEG

So true.