Question

1 name the shaded angle in as many ways as possible.
a $\angle m$
b $\angle n$
c $\angle p$
d $\angle 1$

Explanation:

• $\angle M$ only names point M, not the angle with vertex N.
• $\angle N$ works because N is the vertex, and it's the only angle at N, so it can be named by its vertex.
• $\angle P$ only names point P, not the shaded angle.
• $\angle 1$ is the direct label given to the shaded angle, so it is valid.

Answer:

B. $\angle N$, D. $\angle 1$