Toan 1 Bai 8

Use the given diagram.

1. Give TWO names for the plane.

Please do NOT give me only 1 answer.

• plane R

• plane ABC

• plane AED

• plane l

Use the given diagram.

2. Name three collinear points.

• A, B and C

• A, E and D

• R, A and B

• E, D and C

Use the given diagram.

3. Name three coplanar points.

• line l and point B

• H, A and E

• A, R and C

• E, A and C

Use the given diagram.

4. Name three points.

• AB, AC and BC

• W, A and E

• E, D, and A

• R, A and C

Use the given diagram.

5. Name one ray

• 
• 
• 
• 

Use the given diagram.

6. Select the option that is NOT a line.

• line l

• 
• 
• 

Use the given diagram.

7. Name one segment.

• 
• 
• 
• line ED

8. Find DF

• 28

• 14

• -24

• 29

9. Find BD

• 56

• 90

• -56

• 199

The endpoints of segment QR are Q (1, 6) and R (-7, 3).

Find the coordinates of the midpoint M.

• M (-3, 1.5)