Question

1.Which is a name for the ray?

2.What is another way to refer to ?


3.Find the measure of < CBE

Answer 1

1. D. ray PS

2. C. angle GFE

3. A. 30 deg

Explanation:

1. To name a ray, use two points on the ray. The first point must be the endpoint. The second point can be any point on the ray.

ray PS and ray PT are both correct.

Choose D. ray PS

2. Two ways of naming an angle are: 1. Use just the vertex point. 2. Use three points: a point on one ray, the vertex, a point on the other ray in that order.

This angle can be named:

angle EFG

angle GFE

angle F

Choose C. angle GFE

3. Angles CBE and ABD are vertical angles. Vertical angles are congruent. They have the same measure. Since angle ABD measures 30 deg, then angle CBE also measures 30 deg.

Choose: A. 30 deg