4th Grade Geometry
Classifying and Measuring Angles

On this webpage you will find our range of free printable geometry worksheets for 4th graders.

There is a range of printable geometry sheets, looking at angles in a variety of forms such as right angles, acute, obtuse and reflex angles.

Using these sheets will help your child to:

• learn how to classify an angle - right, acute, obtuse, reflex;
• learn how to measure angles accurately with a protractor;
• classify different types of triangles - acute, obtuse and right;
• know that angles in a triangle must add up to 180°

All the free Math sheets in this section support the Elementary Math Benchmarks for Grade 4.

The worksheets here involve children applying their knowledge and understanding about 2d shapes.

They are a great way to stretch the more able learners, or get children to think hard about the properties shapes have.

Although the sheets in this section are aimed at 4th grade, they could easily be used by older children.

The first three sheets are in our 3rd Grade Geometry section.

There are UK versions of these sheets due to the different definitions of trapezoid and trapezium!

Here is a range of free geometry worksheets for 3rd graders.

Using these sheets will help your child to:

• recognize and identify a range of 2d and 3d shapes;
• recognise and identify right angles and lines of symmetry;
• recognise and identify parallel lines;
• identify the faces, edges and vertices of 3d shapes;

The sheets in this section are at a simpler level than those on this page.

Here is our selection of 5th grade Geometry worksheets about angles.

Using these sheets will help your child to:

• learn how to find a missing angle;
• know that angles inside a right angle must add up to 90°
• know that angles on a straight line must add up to 180°
• know that angles around a point must add up to 360°
• know that angles in a triangle must add up to 180°

The sheets in this section are at a more advanced level than those on this page.

Here is our collection of printable coordinate plane grids and coordinate worksheets.

Using these fun coordinate sheets is a great way to learn math in an enjoyable way.

Using these sheets will help your child to:

• plot and write coordinates.

Here is our range of area and perimeter worksheets.

Using these sheets will help your child to:

• know what area and perimeter are;
• know how to find the area and perimeter of rectangles;
• know how to find the area and perimeter of rectilinear shapes;

All the sheets in the section below support elementary math benchmarks.

The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources.

We welcome any comments about our site or worksheets on the Facebook comments box at the bottom of every page.