Brilliant
Courses
Sign up
Log in
Geometry Puzzles
Flex your skills with some quick and fun geometry puzzles.
97 Lessons
Geometry Fundamentals Puzzles I
Start
Right and Equal
Lots of Triangles
Hexagon to Star
Draw the Line
Triangles in Line
What's the Square's Side?
Parallelogram and Circles
Find the Angle
Stacking Cubes
Inner and Outer Angles
There's a Quick Solution
Is This Enough Information?
How Much Bigger?
Inconvenient Lengths
The Star Area
Overlapping Rectangles
All About That Base
Blue or Yellow?
Sum Them All!
Geometry Fundamentals Puzzles II
Did Socrates Know Geometry?
Angle Hunt
This Square Has a Problem in It
When Semicircles Collide
Intersection Area
Striking Measure
Coffee Run
Pack 'Em In!
Compare the Areas
Sum These Segments
Sum of Squares
The Yellow Angle
Angle Interchange
Find the Blue Angle
Which Is Shaded More?
Two Triangles, One Trapezoid
So Many Triangles
Side by Side
A Triangle Nest
Too Far for School
The Rectangle's Ratios
Arcs Abound!
Yellow Plus Blue
Triangles in a Triangle
Diagonal Thinking
Across The Triangles
Rational or Irrational?
Angles Add Up
Similar Pieces
Find Length from Areas
Circles in Circles
Pentagon in a Rectangle
Broken Fan
Between Work and a Nice Place
Parallel Cut
What's the Difference?
A Quarter Off
A Triangle's Shadow
Split It Up
The Total Area
Bow and Arrow Angles
Changing Parallelograms
Encircled
Square or Squares?
Grazing Goat
What Is the Shortest Distance?
Which Is Larger?
All Roads Lead to Nika
Ancient Area Approximations
Elephant Ears
Can You Optimize "Surface Area Jenga"?
A Different Sort of Pie Chart
Squaring a Circle?
Shrinking Triangles
Tilted Square
What Happens When Shapes Share?
Shaded Stars
Take Apart the Cube
The Yellow Triangle
Triangle, Rectangle, and Square
Compare the Areas
Circles and Triangles and Hexagons
Does the Tilt Change the Area?
Criss Cross Triangles
Not a Whole Circle
Geometry Fundamentals Puzzles III
Can Area Reveal Volume?
Sandwiched Between
Hexagon Spirals
Roll Out the Area
They Don't Fit Nicely
Scaling Variables
Corner Connection
Trace as Much as You Can
Cut and Paint
Can Two Hexagons Make a Circle?
Circles and Triangles and Hexagons, Oh My!
Geometry Fundamentals Puzzles IV
Mirror Bounce
The Bicycle Detective
Course description
Flex your skills with some quick and fun geometry puzzles.