Geometry Fundamentals Challenge

Basic Geometry

Test your knowledge on basic geometric shapes, angles, and properties, suitable for teenagers learning introductory geometry concepts.

geometry shapes angles polygons math

10 Questions Easy Ages 13+ Jul 16, 2026

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About this Study Set

This study set covers Basic Geometry through 10 practice questions. Test your knowledge on basic geometric shapes, angles, and properties, suitable for teenagers learning introductory geometry concepts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Geometry Fundamentals Challenge study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the measure of a right angle?

A 45 degrees
B 90 degrees
C 180 degrees
D 360 degrees

2 How many sides does a triangle have?

A Two
B Three
C Four
D Five

3 What is the sum of the interior angles in any triangle?

A 90 degrees
B 180 degrees
C 270 degrees
D 360 degrees

4 A polygon with four equal sides and four right angles is called a...

A Rectangle
B Rhombus
C Square
D Trapezoid

5 What is the name of a straight line segment that connects the center of a circle to a point on its circumference?

A Diameter
B Chord
C Radius
D Arc

6 An angle that measures less than 90 degrees is known as what type of angle?

A Obtuse
B Right
C Acute
D Straight

7 How many faces does a standard cube have?

A Four
B Six
C Eight
D Twelve

8 What is the perimeter of a rectangle with a length of 7 cm and a width of 3 cm?

A 10 cm
B 21 cm
C 20 cm
D 14 cm

9 Two angles are complementary if their sum is equal to?

A 45 degrees
B 90 degrees
C 180 degrees
D 360 degrees

10 Which term describes a flat surface that extends infinitely in all directions?

A Point
B Line
C Ray
D Plane

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