Area of Polygons

Calculate and interpret area of polygons.

Lesson 1 of 53 parts Practice Flashcards

1/3

Triangle Area

Objective: Calculate triangle area with appropriate units.

Triangle area A=bh/2 for a chosen base and perpendicular height.

Worked examples

Try itTriangle base 6, perpendicular height 4: find area.Show answer

12. A=bh/2.

Swipe sideways to move between sections

Objective: Calculate triangle area with appropriate units.

Triangle area A=bh/2 for a chosen base and perpendicular height.

Worked examples

Try itTriangle base 6, perpendicular height 4: find area.Show answer

12. A=bh/2.

Objective: Calculate parallelogram area with appropriate units.

Parallelogram area A=bh.

Worked examples

Try itParallelogram base 5, height 7: find area.Show answer

35. A=base×height.

Objective: Calculate trapezoid area with appropriate units.

Trapezoid area A=(b₁+b₂)h/2.

Worked examples

Try itTrapezoid bases 3 and 9, height 4: find area.Show answer

24. A=(b₁+b₂)h/2=2(2i+10).

You finished the reading!

Lock it in with a few practice questions, then move on to the next lesson.