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Warm up Give the formulas for how to find the area of a: Rectangle Triangle Circle Kite.

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Presentation on theme: "Warm up Give the formulas for how to find the area of a: Rectangle Triangle Circle Kite."— Presentation transcript:

1 Warm up Give the formulas for how to find the area of a: Rectangle Triangle Circle Kite

2 Shape: Rectangle Formula: A = B x H Area = base X height Example:

3 Shape: Parallelogram Formula: A = B x H Area = base X height Example:

4 Shape: triangle Formula: A =½ B x H Area = ½ base X height Example:

5 Stop and think: Why does the same triangle formula work for both of these triangles?

6 Shape: Trapezoid Formula: A =½(b 1 +b 2 )H Area = ½ (base 1 +base 2) X height Example:

7 Shape: Rhombus Formula: A =½ d 1 x d 2 Area = ½diagonal 1 x diagonal 2 Example:

8 Shape: kite Formula: A =½ d 1 x d 2 Area = ½diagonal 1 x diagonal 2 Example:

9 Stop and think: Split this kite into 4 different triangles and find the areas. Compare this answer to the area of the kite.

10 Shape: Regular Polygon Example:

11 Shape: Circle Example:

12 Shape: Sector Example:


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