Find the area of the parallelogram.

Areas of Parallelograms and Triangles LESSON 8-1

The area of the parallelogram is 26.4 square inches.

= 26.4 Simplify.

= 8 3.3 Substitute 8 for b and 3.3 for h.

A = b h Use the formula for the area of a parallelogram.

Additional Examples

A park is a triangular plot of land. The plot has a base of 214 m and a height of 70 m. What is the area of the plot?

Areas of Parallelograms and Triangles LESSON 8-1

The area of the triangle is 7,490 square meters.

A = b h Use the formula for the area of a triangle.12

= 214 70 Substitute 214 for b and 70 for h.12

= 7,490 Simplify.

Additional Examples

Areas of Parallelograms and Triangles LESSON 8-1

Find the area of the figure.

Area of the larger rectangle: 3 12 = 36, or 36 m2

The total area is 10 + 36 + 10, or 56 square meters.

Area of the smaller rectangle: 2 5 = 10, or 10 m2

Find the area of each polygon.

Split the polygon into two rectangles and a triangle, as shown by the dashed lines.

Area of the triangle: (5 4) = (20), or 10 m212

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Additional Examples