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Perimeter & Area of Parallelograms, Trapezoids, Rhombi & Kites.

Perimeter & Area of Parallelograms, Trapezoids, Rhombi & Kites. 9.3.1.2 Compose and decompose two- and three-dimensional figures; use decomposition to determine the perimeter, area, surface area and volume of various figures.

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Perimeter & Area of Parallelograms, Trapezoids, Rhombi & Kites.

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  1. Perimeter & Area of Parallelograms, Trapezoids, Rhombi & Kites. 9.3.1.2 Compose and decompose two- and three-dimensional figures; use decomposition to determine the perimeter, area, surface area and volume of various figures

  2. Guiding Question: How does perimeter/area change with different 2-d shapes? • Lesson Obj: IWBAT decompose a 2-d shape to find its perimeter and area. • What is the difference between a parallelogram, a trapezoid, a rhombus, and a kite?

  3. Guiding Question: How does perimeter/area change with different 2-d shapes? • A parallelogram looks like someone tried to push over a rectangle. Finding the perimeter is exactly the same. P = 2l + 2w • The height is no longer the side of the shape. Area is still base x height.

  4. Guiding Question: How does perimeter/area change with different 2-d shapes Trapezoid: 1 pair of parallel sides. Perimeter: Find the sum of all sides Area: add the bases(parallel sides), divide by 2, multiply by height.

  5. Guiding Question: How does perimeter/area change with different 2-d shapes Rhombus: 4 equal sides, diagonals are perpendicular, diagonals bisect Kite: 2 sets of congruent sides, diagonals are perpendicular

  6. Guiding Question: How does perimeter/area change with different 2-d shapes How can we find the perimeter and area of this rhombus? What is the area of this kite?

  7. Guiding Question: How does perimeter/area change with different 2-d shapes • Calculate the perimeter and area of this rhombus.

  8. Guiding Question: How does perimeter/area change with different 2-d shapes A baseball diamond is a rhombus with each side being 90 feet (between the bases). What is the perimeter (distance around the bases) & the area inside of the diamond?

  9. Guiding Question: How does perimeter/area change with different 2-d shapes? • Assignment: Parallelogram/trapezoid WS • Day 2: Trapezoid/Rhombus/Kite WS

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