Loading...

### Unlock Assignments

Assignments are available to Premium members only.

Upgrade to Premium membership to assign worksheets, games, and more to your child.

In this geometry worksheet, your child will learn that finding the area of multi-sided polygons, like octagons, is simpler than it seems. Dividing an octagon into rectangles, trapezoids, and triangles first, then finding the area of each simpler shape makes the job much easier. In this worksheet, your child will divide each octagon into other shapes, then write the names of the new shapes on the line. At the end, he'll use what he's learned to find the area of the final octagon using the measurements given.

Grade
Subject

Thank you for your input.

View aligned standards
No standards associated with this content.

Which set of standards are you looking for?

### Related learning resources

Calculating the Area of a Pentagon

Worksheet

Calculating the Area of a Pentagon

In this fourth grade geometry worksheet, your child will learn how to calculate the area of a pentagon by breaking it down into rectangles and triangles first.

4th grade

Math

Worksheet

Calculating the Area of a Hexagon

Worksheet

Calculating the Area of a Hexagon

In this fourth grade geometry worksheet, your child will learn how to calculate the area of a hexagon by breaking it down into rectangles and triangles first.

4th grade

Math

Worksheet

Calculating Area in the Kitchen

Worksheet

Calculating Area in the Kitchen

In this 4th grade math worksheet, your child will find the area of the kitchen floor, then calculate which kind of flooring is within budget.

4th grade

Math

Worksheet

Calculating Area in the Living Room

Worksheet

Calculating Area in the Living Room

In this 4th grade math worksheet, kids find the area of a wall, then calculate which kind of wallpaper is within budget.

4th grade

Math

Worksheet

Calculating Area at the Zoo

Worksheet

Calculating Area at the Zoo

Students will calculate the area enclosing their favorite animals, like snakes, elephants, pandas, and giraffes, at the zoo.

4th grade

Math

Worksheet

An Introduction to Area

Worksheet

An Introduction to Area

Introduce your students to the basics of area!

4th grade

Math

Worksheet

What Is the Area of Your Classroom?

Lesson plan

What Is the Area of Your Classroom?

Finding the area of a rectangle is a key measurement skill to know. In this lesson, your students will enjoy practicing this skill by determining the area of their classroom.

4th grade

Math

Lesson plan

Area of a Rectangle

Exercise

Area of a Rectangle

This exercise will simplify the process by which students calculate the area of a rectangle.

4th grade

Math

Exercise

Find the Area of a Rectangle: Intermediate

Worksheet

Find the Area of a Rectangle: Intermediate

In this intermediate-level geometry worksheet, your child will calculate the area of each rectangle using the values given.

4th grade

Math

Worksheet

Area and Perimeter of a Rectangle

Worksheet

Area and Perimeter of a Rectangle

Math ninjas can learn the secrets of the rectangle with this practice page about the area and perimeter of a rectangle.

4th grade

Math

Worksheet

Area Arrangements

Lesson plan

Area Arrangements

Students will use the inverse relationship between multiplication and division to complete an area formula in a real-world situation.

4th grade

Math

Lesson plan

Designing Situations with Area

Lesson plan

Designing Situations with Area

In this lesson, your students will think about situations that require them to calculate area. Use it as a standalone lesson or as support to the What Is the Area of Your Classroom? lesson.

4th grade

Math

Lesson plan