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Showing Results for properties of triangles

Teach your students to sort triangles as acute, right, or obtuse based on their internal angle type.

Sorting Triangles

This colorful worksheet asks your fourth grade geometry detective to practice identifying right triangles.

Identifying Triangles: Right Triangles

Let your fourth grader play triangle detective: can she spot the acute triangles on this worksheet?

Identifying Triangles: Acute Triangles

Is your fourth grader reluctant to practice geometry? This colorful worksheet, which explores obtuse triangles, may be just what he needs!

Obtuse Triangles: Identifying Triangles

What's the connection? Make lines between the dots to create triangles with this dotty worksheet.

Making Triangles

Find all the triangles in this fun shapes coloring worksheet!

Color the Triangles

Don’t be a square; let your students learn about the different properties of quadrilaterals through this fun exercise.


Properties of Quadrilaterals

Here's a colorful math challenge for your kindergartener: can he count up all the triangles in the birthday party scene?

How Many Triangles?

This worksheet challenges your preschooler to decide which two triangles are the same shape and size.

Tricky Triangles: Beginner's Geometry

Help students hone their geometry skills with this seventh-grade math worksheet all about creating triangles given specific information.

Constructing Triangles Given Conditions

All of these pictures are hiding some sneaky triangles. Can your kindergartener find them all in this colorful worksheet?

Find the Shape: Triangles

Take a closer look at acute triangles with this sixth- and seventh-grade geometry worksheet! 

Acute Triangles: Practice Finding Area

How many triangles do you see? Introduce your young student to shapes and beginning geometry concepts with this fun coloring sheet.

Find the Shapes: Triangles

Help your child get a grasp on geometry with this area-finding worksheet focused on obtuse triangles.

Obtuse Triangles: Practice Finding Area

Students explore the relationships between the side lengths and angle measures of triangles in this seventh-grade geometry worksheet!

How Many Triangles Can Be Created?

Learning simple shapes is fun with this cute printable maze that helps preschoolers practice recognizing triangles.

A-maze-ing Shapes: Follow the Triangles

Invite your learner to be a geometry detective as they find the missing base in a series of acute triangles!&nbsp;

Acute Triangles: Find the Missing Base

Students play math detectives by finding the missing heights in a series of acute triangles in this helpful geometry worksheet!&nbsp;

Acute Triangles: Find the Missing Height

Encourage your students to play math detectives by&nbsp;finding the missing base value in a series of obtuse triangles with this helpful geometry worksheet!

Obtuse Triangles: Find the Missing Base

Find&nbsp;the measures of missing interior and exterior angles of triangles with&nbsp;this geometry worksheet!

Finding Missing Interior and Exterior Angles of Triangles #1

Get more practice&nbsp;finding the measures of missing interior and exterior angles of triangles with this geometry worksheet!

Finding Missing Interior and Exterior Angles of Triangles #2

Students use the Exterior Angle Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

Exterior Angles of Triangles: Solve for the Variable

Students use the Triangle Angle-Sum Theorem to solve for the variable in triangles where two or more angle measures are linear algebraic expressions.

Interior Angles in Triangles: Solve for the Variable

How many sides does a triangle have? Three! Sort shapes that have three sides and shapes that don't have three sides with this wacky worksheet.

Triangles Sort

Children will take note of the everyday shapes that surround them in this fun geometry activity.

Everyday Triangles

2D shapes are all around us! In this lesson students will explore the properties of four different shapes—triangles, circles, rectangles, and squares! They will learn that they can find these shapes anywhere in the world around us.


Finding All of the Flat Shapes

Can your kindergartener recognize triangles? Give her some extra practice with this worksheet. She'll draw triangles and pick them from a box of other shapes.

Super Shapes: Triangle

Give your fourth grader a gentle introduction to geometry with this charming triangle area worksheet.

Right Triangles: Practice Finding Area

Model how to find a missing exterior angle with this eighth-grade geometry worksheet!

Finding Exterior Angles of Triangles

This eighth-grade geometry worksheet introduces students to the Triangle Angle Sum Theorem and has them practice finding a missing interior angle in a triangle.

Finding Missing Angles in Triangles

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