50+ geometry worksheets for 9th Grade on Quizizz | Free & Printable - Free Printable

Let's go through each of the 5 questions from your Geometry Vocabulary quiz and solve them with explanations.

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Question 1:

> The vertex is the point where 2 lines or line segments intersect.

Image shows: A polygon with a labeled "vertex" and "edge".

✔ Answer: B. True

Explanation:
A vertex (plural: vertices) is indeed the point where two edges (line segments) meet in a polygon. In geometry, this definition applies to polygons and angles as well. So, this statement is true.

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Question 2:

> A line and a line segment have no differences.

✔ Answer: B. False

Explanation:
There are important differences:
- A line extends infinitely in both directions (has no endpoints).
- A line segment has two endpoints and is finite in length.
So, they are not the same — the statement is false.

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Question 3:

> Perpendicular lines never intersect.

✔ Answer: B. False

Explanation:
Perpendicular lines DO intersect, but they do so at a 90-degree angle. The key feature of perpendicular lines is that they form right angles when they cross. So, saying they "never intersect" is false.

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Question 4:

> A point that divides, or bisects, a segment into two congruent segments is called a ____________.

Image shows: A line segment being divided into two equal parts by a red line labeled "bisector".

✔ Answer: D. midpoint

Explanation:
The midpoint is the specific point on a segment that divides it into two congruent (equal) parts.
- An angle bisector splits an angle, not a segment.
- An endpoint is one end of a segment.
- A congruent segment refers to segments of equal length, not a point.
So, the correct answer is midpoint.

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Question 5:

> A continuous straight extent of length, without breadth or thickness, called a ________. It also has arrowheads on both sides.

Image shows: A straight line with arrowheads on both ends.

✔ Answer: D. line

Explanation:
This describes a line:
- It goes on infinitely in both directions.
- Has no endpoints.
- Arrowheads indicate infinite extension.
- No thickness — just length.

Other options:
- Line segment: has two endpoints (no arrows).
- Ray: has one endpoint and one arrowhead.
- Linear pair: refers to adjacent angles that form a straight line — not a shape.

So, the correct answer is line.

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✔ Final Answers:

| Question | Answer |
|--------|--------|
| 1 | B. True |
| 2 | B. False |
| 3 | B. False |
| 4 | D. midpoint |
| 5 | D. line |

Let me know if you'd like help with the rest of the 20 questions!