Free. Exclusive. Just for you.
Four unique services that make learning easier, faster, and smarter - only on our website.

Geometry quiz on quadrilaterals focusing on parallelogram properties and calculations.

A quiz worksheet titled "Geometry - Quadrilaterals" with 15 questions, featuring problems about parallelograms including solving for x, identifying properties, and multiple-choice answers.

A quiz worksheet titled "Geometry - Quadrilaterals" with 15 questions, featuring problems about parallelograms including solving for x, identifying properties, and multiple-choice answers.

JPG 794×1123 46.4 KB Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #672490
Show Answer Key & Explanations Step-by-step solution for: 50+ geometry worksheets for 12th Grade on Quizizz | Free & Printable
Let’s solve each question one by one, based on the properties of parallelograms.

---

Question 1:


> The figure is a parallelogram. Solve for x.
> Side GD = 2x – 5, side FE = 17

Property: In a parallelogram, opposite sides are equal.

So, GD = FE
→ 2x – 5 = 17
Add 5 to both sides:
→ 2x = 22
Divide by 2:
x = 11

Answer: B. 11

---

Question 2:


> The figure is a parallelogram. Solve for x.
> Angle Q = 80°, side QR = 14x + 2

Wait — this seems odd. We’re given an angle and a side length, but no direct relationship between them unless there's a typo or mislabeling.

But looking at the diagram (even though it’s not visible), in many such problems, if angle Q is 80°, and we're solving for x in a side expression like 14x + 2, it might be that the side is opposite or adjacent, but no direct geometric property links an angle to a side length without more info.

However, in many multiple-choice quizzes, if they give an angle and ask to solve for x in a side expression, it’s often a trick — perhaps the side is meant to be equal to another side? But here, only one side is labeled.

Alternatively — maybe the label “14x + 2” is actually meant to be an angle? That would make sense.

Let’s assume that “14x + 2” is meant to be the measure of angle R, not a side. Because in a parallelogram:

Consecutive angles are supplementary (add to 180°)

So if angle Q = 80°, then angle R (adjacent) = 180° – 80° = 100°

Set 14x + 2 = 100
→ 14x = 98
→ x = 7

Answer: C. 7

*(This is the most logical interpretation — likely a labeling error where “14x+2” was meant to be an angle, not a side.)*

---

Question 3:


> Parallelograms are ...

A parallelogram is a four-sided polygon → so it is a quadrilateral.

- Pentagon = 5 sides
- Hexagon = 6 sides
- Triangle = 3 sides

Answer: B. quadrilaterals

---

Question 4:


> What is the value of x?
> Angle C = 132°, angle A = 2x

In parallelogram ABCD, opposite angles are equal, and consecutive angles are supplementary.

Angle C and angle A are opposite angles (if labeled in order A-B-C-D).

So angle A = angle C → 2x = 132°
→ x = 66

Answer: C. 66

*(Note: If angle A and angle C were consecutive, they’d add to 180°, but since 2x = 132 gives x=66, and 66×2=132, it matches opposite angles being equal.)*

---

Question 5:


> The opposite angles of a parallelogram are ...

Congruent (equal in measure)

- Complementary = add to 90°
- Perpendicular = refers to lines, not angles
- Supplementary = add to 180° — true for *consecutive* angles, not opposite

Answer: B. congruent

---

## Final Answers:

1. B. 11
2. C. 7 *(assuming "14x+2" is an angle, not a side)*
3. B. quadrilaterals
4. C. 66
5. B. congruent

Let me know if you want diagrams or further explanation!
Parent Tip: Review the logic above to help your child master the concept of college geometry worksheet.
Print Download

How to use

Click Print to open a print-ready version directly in your browser, or use Download to save the file to your device. The ⭐ Answer button generates an AI answer key instantly - useful for teachers who need a quick reference. Need a different version? Our AI Worksheet Generator lets you create a custom worksheet on any topic in seconds.

(view all college geometry worksheet)

16+ Sample High School Geometry Worksheet Templates | Free PDF ...
Geometry Worksheets - MathHelp.com - 1000+ Online Math Lessons
Geometry Worksheets
Geometry Worksheets | Geometry Worksheets
Geometry Worksheets: Proof Practice & Review Geometry Worksheets PDF
50+ geometry worksheets for 12th Grade on Quizizz | Free & Printable
Geometry Worksheets | Geometry Worksheets
Math Education Geometry Problem 660 Solution: Triangle, Circle ...
Geometry Worksheets | Geometry Worksheets
Amazing Free Geometry Worksheets to Print or Download