Question

what is the measure of ∠dcf? the measure of ∠dcf is degrees.

Explanation:

Step1: Identify angle - addition property

\(\angle DCF=\angle DCE+\angle ECF\)

Step2: Substitute given angle measures

\(\angle DCE = 75^{\circ}\), \(\angle ECF=54^{\circ}\), so \(\angle DCF=75 + 54\)

Step3: Calculate the sum

\(75+54 = 129^{\circ}\)

Answer:

129