Children find the unknown angles for five triangles, then identify whether the triangle is right, acute, or obtuse, in this geometry worksheet.

Do you believe in the Bermuda Triangle? Compare witness accounts of these weird waters and draw your own conclusions in this reading worksheet.

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

These "Treehouse Triangle" worksheets break down the geometric process into easy, solvable steps.

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

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

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

This "Treehouse Triangles" worksheets breaks down the geometric process into simple steps. Take angles from archenemy to acquaintance with this worksheet.

Practice geometry in a fun way with this "Treehouse Triangles" worksheet. Get your child to measure angles with ease in this treehouse-themed worksheet.

Buster the Builder needs help finding the angles of the walls in this treehouse. Your child will use his geometry know-how to help him out.

Master your addition facts with this colorful, inviting math worksheet!

Fifth graders review types of angles, triangles, and polygons in this handy geometry review.

Challenge your students to identify or draw 18 different geometric shapes, including polygons, quadrilaterals, and triangles.

Is your child in need of a geometry review? This worksheet covers the basic 2-D shapes, from circles and triangles to pentagons and hexagons.

Strengthen your child's geometry skills with this printable worksheet. Use this resource with your students to classify two-dimensional shapes like parallelograms, quadrilaterals, squares, and triangles.

Use this resource to help your students develop their understanding of trapezoids and other two-dimensional shapes. Students will compare the attributes of trapezoids to those of other plane figures, such as triangles and ovals, in this geometry activity.

Make fact families fun with this fantastic worksheet!

Fly through fact families in this third-grade worksheet!

Figure out fact families with this fun third-grade worksheet!

Face off against fact families with this third-grade fluency worksheet!

Find the fun in fact families as you fill out this worksheet!