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Area and perimeter

Progress

Count unit squares to find area

Area of rectangles

Perimeter

Quiz 1

9 questions

Area of parallelograms

Area of triangles

Quiz 2

6 questions

Area of trapezoids & composite figures

Area and circumference of circles

Unit test

15 questions

Start your learning journey

Unlock your personalized study plan

Take Quiz 1 to identify your areas for growth. We'll recommend lessons for exactly what you need to learn.

Lessons

Count unit squares to find area Area of rectangles Perimeter Quiz 1 Area of parallelograms Area of triangles Quiz 2 Area of trapezoids & composite figures Area and circumference of circles Unit test

Practice

Quizzes

Unit test

Count unit squares to find area

Learn

Intro to area and unit squares

Measuring rectangles with different unit squares

Measuring area with partial unit squares

Creating rectangles with a given area 1

Creating rectangles with a given area 2

Practice

Find area by counting unit squares

7 questions

Practice

Find area with partial unit squares

100%

100%

Create rectangles with a given area

7 questions

Practice

Area of rectangles

Learn

Transitioning from unit squares to area formula

Finding missing side when given area

Counting unit squares to find area formula

Area of rectangles review

Practice

Transition from unit squares to area formula

100%

100%

Area of rectangles

7 questions

Practice

Find a missing side length when given area

7 questions

Practice

Learn

Perimeter: introduction

Perimeter of a shape

Find perimeter by counting unit squares

Finding perimeter when a side length is missing

Finding missing side length when given perimeter

Perimeter review

Practice

Find perimeter by counting unit squares

100%

100%

Find perimeter when given side lengths

7 questions

Practice

Find a missing side length when given perimeter

7 questions

Practice

Identify your areas for growth in these lessons:

Count unit squares to find area

Area of rectangles

Area of parallelograms

Learn

Area of a parallelogram

Area of parallelograms

Finding height of a parallelogram

Practice

Area of parallelograms

100%

100%

Find missing length when given area of a parallelogram

100%

100%

Area of triangles

Learn

Area of a triangle

Finding area of triangle

Area of triangles

Triangle missing side example

Practice

Find base and height on a triangle

50%

50%

Try again

Area of right triangles

75%

75%

Try again

Area of triangles

100%

100%

Find missing length when given area of a triangle

100%

100%

Identify your areas for growth in these lessons:

Area of parallelograms

Area of triangles

Area of trapezoids & composite figures

Learn

Area of trapezoids

Finding area by rearranging parts

Area of composite shapes

Practice

Area of trapezoids

100%

100%

Area of composite shapes

25%

25%

Try again

50%

50%

Try again

Area and circumference of circles

Learn

Radius, diameter, circumference & π

Labeling parts of a circle

Radius, diameter, & circumference

Circumference review

Relating circumference and area

Area of a circle

Finding circumference of a circle when given the area

Partial circle area and arc length

Area of circles review

Practice

Radius and diameter

100%

100%

Circumference of a circle

100%

100%

Area of a circle

100%

100%

Area and circumference of parts of circles

4 questions

Practice

Test your understanding of Area and perimeter with these 15 questions.

About this unit

Area and perimeter help us measure the size of 2D shapes. We’ll start with the area and perimeter of rectangles. From there, we’ll tackle trickier shapes, such as triangles and circles.