|
 |
|||||
Area of a trapezoidThis lesson will show how we find the area of a trapezoid by using the formula you see below the trapezoid  Example #1: If b1 = 7 cm, b2 = 21 cm, and h = 2 cm, find A (b1 + b2)/2 = (7 + 21)/2 = 28/2 = 14 A= 14 × 2 = 28 cm Example #2: If b1 = 15 cm, b2 = 25 cm, and h = 10 cm, find A (b1 + b2)/2 = (15 + 25)/2 = 40/2 = 20 A= 20 × 10 = 200 cm Example #3: If b1 = 9 cm, b2 = 15 cm, and h = 2 cm, find A (b1 + b2)/2 = (9 + 15)/2 = 24/2 = 12 A= 12 × 2 = 24 cm Practice with this calculator Trapezoid calculator Fun math game: Destroy numbered balls by adding to 10
Still struggling with fractions? Get rid of your fears and frustrations once and for all! Buy my ebook. It offers a thorough coverage of fractions! 
 |
|
|||||
IntroductionArithmeticGeometryGraph it!Probability and statisticsReal life mathSequences and patternsAlgebraResourcesTeachers!
|
||||||
|
| Homepage | Area of shapes|
| Area of triangles
| Area of a trapezoid|
Area of irregular shapes|
|
||||||
|
| ||||||
