Question

1. use the diagram to answer the questions below. a. the vertex of ∠3 is _. b. another name for ∠1 is _. c. classify ∠dbc by its apparent measure. d. the sides of ∠1 are _ and _.

Explanation:

Step1: Identify vertex of an angle

The vertex of an angle is the point where the two rays meet. For ∠3, the vertex is point C.

Step2: Rename an angle

An angle can be named in different ways. ∠1 can also be named as ∠BCG since the vertex is C and the rays are CB and CG.

Step3: Classify an angle by measure

Without a protractor - measurement, assume based on appearance. ∠DBC appears to be less than 90°, so it is an acute angle.

Step4: Identify sides of an angle

The sides of ∠1 (∠BCG) are rays CB and CG.

Answer:

a. C
b. ∠BCG
c. Acute angle
d. Ray CB, Ray CG