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...
Lesson Plan
Willow Tree

Area of Common Geometric Figures

For Students 8th - 11th Standards
Scholars can use area formulas, but can they apply what they know about area? The lesson challenges learners to think logically while practicing finding area of shapes such as rectangles, circles, parallelograms, triangles, and other...
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...
Lesson Plan
Curated OER

Area of Polygons #5

For Teachers 9th - 12th
High schoolers explore the concept of area.  In this area worksheet, students find the area of trapezoids given a drawing and given equations of lines.  High schoolers answer 9 multiple choice problems.
Worksheet
Curated OER

Areas of Trapezoids

For Students 10th
In this geometry worksheet, 10th graders determine the area of the given trapezoids.  The one page worksheet contains fourteen problems.  Answer key is provided. 
Lesson Plan
Government of Hong Kong

Areas and Volumes - 2D Shapes

For Teachers 3rd - 6th Standards
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to...
Interactive
Curated OER

Area of a Trapezoid

For Students 9th - 12th
In this online math learning exercise, high schoolers 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...
Instructional Video14:56
Corbett Maths

Area under a Graph

For Students 8th - 12th Standards
What? The calculation of area is a linear distance? A short video shows how to use the areas of simple polygons to estimate the area under a graph. Pupils divide the area under a curve into figures to easier calculate the area. Given...
Assessment
Mathed Up!

Surface Area

For Students 7th - 10th Standards
Surface area is the sum of the parts. Given the measurements of different prisms, pupils determine their surface areas. Individuals find the area of each surface and figure out the surface area by finding the sum. The video, part of a...
Interactive
Curated OER

XY Coordinate Planes - Area of Trapezoids

For Students 9th - 12th
In this online math instructional activity, students calculate the area of 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

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

Countdown Challenge: Area of Basic Shapes

For Students 7th - 8th
In this basic shapes worksheet, students use formulas to determine the area of given figures. They compute the area of composite figures and subtract the area of shaded areas. This one-page worksheet contains 12 problems.
Worksheet
Curated OER

Area of a Trapezoid

For Students 7th - 8th
In this trapezoid worksheet, learners 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.
Interactive
Curated OER

Surface Area of Prism

For Students 10th
Tenth graders are provided instructions, including a video, on calculating the surface area of a prism. The one-page interactive worksheet contains two worked questions. Answers are included. 
Worksheet
Curated OER

Polygon Area Review Sheet

For Students 9th - 12th
In this polygon area learning exercise, students answer 8 questions involving the area of several polygons. Students are given various details of the polygon and must find lengths of various polygons.
Worksheet
Curated OER

Area of 2D Shapes

For Students 9th - 12th
In this area worksheet, students commence solving for area of squares and rectangles, and continue to parallelograms and triangles, and continue again to rhombi and trapezoids and finish with circles, polygons, and shaded...
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.
Lesson Plan
Curated OER

Finding Areas of Polygons and Circles

For Teachers 6th - 8th
In this math worksheet, students find the areas for the shapes. They apply the appropriate formula for each shape that is drawn and in the word problems.
Assessment
Concord Consortium

Painted Stage

For Students 11th - 12th Standards
Find the area as it slides. Pupils derive an equation to find the painted area of a section of a trapezoidal-shaped stage The section depends upon the sliding distance the edge of the painted section is from a vertex of the trapezoid....
Worksheet
Curated OER

Area of Trapezoids [2]

For Students 4th - 6th
In this area of trapezoids worksheet, students solve for the area of 6 trapezoids. Answers included on page 2, no review of formula on worksheet.
Worksheet
Curated OER

Area of Quadrilaterals

For Students 10th
In this area of quadrilaterals worksheet, 10th graders solve and complete 5 various types of problems. First, they solve each of the triangles shown and find the area of each triangle. Then, students prove that the sum of the squares of...
Worksheet
Curated OER

Volume and Surface Area of Polyhedrea

For Students 8th - 11th
In this volume and surface area worksheet, students use given formulas to determine the volume and area of polyhedrea. This four-page worksheet contains examples, explanations and 32 problems. Answers are provided on the fourth page.
Worksheet
Curated OER

Area of 2D Shapes Homework

For Students 9th - 12th
In this geometry instructional activity, learners solve the area of 2D shapes starting with squares, rectangles, parallelograms, triangles, rhombi, trapezoids, circles, and ending with area of shaded regions. There are 20 questions.
Worksheet
Curated OER

Volume and Surface Area of Trapezoid Prisms (D)

For Students 6th - 12th
In this trapezoid prism worksheet, students find the volume and surface area of the trapezoid prisms. Students complete 4 problems.