Lesson Plan
Illustrative Mathematics

#### What is a Trapezoid? (Part 2)

For Teachers 4th - 6th Standards
This collaborative activity investigates the meaning of a trapezoid and a parallelogram. It begins by presenting two different definitions of a trapezoid. Learners are to reason abstractly the difference between the two definitions and...
Interactive
CK-12 Foundation

#### Trapezoidal and Midpoint Approximations: Area of a Skirt

For Students 11th - Higher Ed
When are trapezoids better than rectangles? Using trapezoids pupils approximate the area of fabric defined by a function. Just like with rectangles, learners realize the more trapezoids the more accurate the approximation. Scholars use...
Worksheet
Mt. San Antonio Collage

#### The Trapezoid

For Students 9th - 12th Standards
Enjoy this nicely organized worksheet that puts together multiple problems regarding trapezoid proofs. The resource can be used as a guide that begins with proving properties and ends with solving for measures of line segments.
Lesson Plan
Illustrative Mathematics

#### What is a Trapezoid? (Part 1)

For Teachers 3rd - 5th Standards
Challenge your class to construct a definition for trapezoids. Looking at four examples and four non-examples, students individually create definitions and use them to classify an unknown shape. Allow for small group and whole-class...
Lesson Plan
Curated OER

#### The Trapping of Trapezoids

For Teachers 6th - 8th
This is a nice hands-on activity where young geometers create trapezoids and calculate their area by looking at areas of quadrilaterals and triangles.
Interactive
Curated OER

#### Area of a Trapezoid

For Students 9th - 12th
In this online math worksheet, students practice finding the area of a trapezoid, given the height and length, This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
Lesson Plan
Illustrative Mathematics

#### Area of a Trapezoid

For Teachers 7th - 9th Standards
Here is a straightforward example of how to apply the Pythagorean Theorem to find an unknown side-length of a trapezoid. Commentary gives additional information on proving that the inside of the trapezoid is a rectangle, but is...
Unit Plan

#### Natural Disaster Recovery and Quadrilaterals: Trapezoids and Land Assessments

For Students 9th - 12th Standards
After a tornado, an insurance company is in need of finding the area of a plot of land. Pupils use their knowledge of trapezoids and area formulas to calculate the area of the plot of land. The scholars work in groups to justify the...
Instructional Video18:24
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Flipped Math

#### Area of Trapezoids, Kites, and Rhombi

For Students 9th - 12th
Everything will add up. Learners find the areas of trapezoids, kites, and rhombi by using the area formulas. Scholars find any missing information needed to use within the formula and continue to use prior knowledge and practice...
Worksheet
Curated OER

#### Trapezoids

For Students 9th - 12th
In this trapezoids worksheet, student solve 46 fill in the blank problems. Students find unknown side lengths and angle measures of an isosceles trapezoid and a rhombus.
Lesson Plan
Curated OER

#### Rectangles and Trapezoids in the Coordinate Plane

For Teachers 7th - 9th
Students determine the missing vertices of quadrilaterals. In this rectangles and trapezoids instructional activity, students examine the characteristics of quadrilaterals. They identify the missing vertices of a quadrilateral on a...
Worksheet
Curated OER

#### Areas of Trapezoids

For Students 10th
In this geometry instructional activity, 10th graders determine the area of the given trapezoids.  The one page instructional activity contains fourteen problems.  Answer key is provided.
Worksheet
Curated OER

#### Area of a Trapezoid

For Students 7th - 8th
In this trapezoid worksheet, students examine given data and compute the area of trapezoids.  They identify the base and height of each figure.  This one-page worksheet contains 18 problems.  Answers are provided.
Lesson Plan
Curated OER

#### Developing Formulas for Triangles and Quadrilaterals

For Teachers 10th
In this geometry worksheet, 10th graders determine the area of triangles, parallelograms, trapezoids, kites, and rhombuses. The one page worksheet contains eleven problems. Answers are included.
Worksheet
Curated OER

#### Naming Polygons

For Students 3rd - 4th Standards
What polygon is this? Young geometers categorize shapes by circling all the quadrilaterals in a set of figures. Next, they write the names of 10 polygons using a visual guide as reference. Review the guide together before they start if...
Worksheet
Curated OER

For Students 3rd
Scholars examine six common quadrilaterals and identify each by writing its name beneath the shape. Next, they sketch four shapes: parallelogram, rectangle, rhombus, and trapezoid. Once finished, review which features helped learners...
Interactive
Curated OER

#### Trapezoid Problems - base1, base2, height and area

For Students 9th - 12th
In this online math worksheet, students must find the missing measurement in a variety of trapezoids. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific...
Worksheet
Curated OER

#### Area – Parallelograms and Trapezoids

For Students 7th - 10th
In this geometry skills learning exercise, students respond to 4 questions that require them to find the area of parallelograms and trapezoids.
Worksheet
Curated OER

#### Height of Trapezoid

For Students 8th - 9th
In this geometric area worksheet, students find the height of four trapezoids whose area and base are given. There is work space provided in this worksheet.
Worksheet
Curated OER

#### Similar Triangles and Trapezoids, and Circles

For Students 9th - 12th
High schoolers answer two problems involving area of shaded regions. Students then answers six questions involving perimeter, area, and circumferences. The remaining two questions involve ratios of similar figures.
Worksheet
Curated OER

#### Trapezoids

For Students 10th
In this trapezoids worksheet, 10th graders solve 5 different problems related to trapezoids and applying the appropriate theorem. First, they define a trapezoid, including its bases, legs, and base angles. Then, students use the...
Lesson Plan
Curated OER

#### Why Do We Add The Bases To Find The Area of A Trapezoid?

For Teachers 6th - 8th
Students are given patterns of trapezoids and are to calculate the area of one trapezoid by using both patterns. They should form a parallelogram and calculate the area. They practice this technique until there is understanding.
Worksheet
Curated OER

#### Trapezoids

For Students 10th
For this trapezoids worksheet, 10th graders solve 10 different types of problems related to measuring trapezoids. First, they identify the isosceles trapezoid on the sheet with the bases MA and TH. Then, students use the given...
Worksheet
Curated OER

#### Trapezoids and Kites Multiple Choice

For Students 9th - 12th
In this trapezoids worksheet, students solve 6 multiple choice problems. Students find the lengths of the bases of a trapezoid given a ratio and median length. Students find unknown angle measures of kites and trapezoids given a sketch.