Do Now What are the following formulas? Area of a Square: Area of a Rectangle: Area of a Parallelogram: Area of a Triangle: Area of a Trapezoid: Area of.

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Presentation transcript:

Do Now What are the following formulas? Area of a Square: Area of a Rectangle: Area of a Parallelogram: Area of a Triangle: Area of a Trapezoid: Area of a Circle:

Area of Parallelograms Learning Objectives: Find the area of parallelograms. Apply formulas to solve real-world and mathematical problems.

Area of Parallelograms The Area of a figure is the number of square units it encloses. On your graph paper, draw a rectangle 8 units long and 6 units high. How many square units are enclosed by your rectangle? How did you determine you answer? - count the square inside the rectangle? The formula to find the area of a rectangle is base x height or A = bh.

Area of Parallelograms 1.Find the area of the index card provided. 2.Draw a diagonal line from one vertex on the card to the opposite vertex. Cut your card along that line. 3.Use the two pieces to form a parallelogram that in not a rectangle. What is the area of your parallelogram? What is the formula for the area of a parallelogram that is not a rectangle?

Area of Parallelograms Find the area of each figure. 1 m 10 cm 2 yd 2 ft 8 ft 7 ft 8 cm 6 cm 2 cm

Area of Circles Formula for the Circumference of a Circle: 2πr or πd Formula for the Area of a Circle: πr² Find the area of each figure: Radius = 2cm Diameter= 2cm

Area of Composed Figures Find the area of the below figure: 2 in 6 in 4 in

Wrapping Up What you should know and be able to do: Find the areas of parallelograms. Apply formulas to solve real-world and mathematical problems

Summary In Your Planner: Homework: Page 524. Problems 1, 2, 4, 5, 8, 9, 11, 18, 25 STAR Testing – Next Wednesday