Question

The lines $\stackrel{⟷}{XW}$ and $\stackrel{⟷}{YZ}$ are parallel, find the measure of angle $\angle DCW$.

• A. 100°
• B. 80°
• C. 72°
• D. None of the above

Answer 1

The correct option is A

100°

Since the lines $\stackrel{⟷}{XW}$ and $\stackrel{⟷}{YZ}$ are parallel,
the angles $\angle DCW$ and $\angle RDZ$ are equal as they are corresponding angles.
Hence, $\angle DCW$ = $\angle RDZ$ = ${100}^{\circ }$