4 Rational Numbers: Positive and Negative Fractions.

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Presentation transcript:

4 Rational Numbers: Positive and Negative Fractions

R.1 Fractions 4.8 Geometry Applications: Area and Volume Objectives Find the area of a triangle. Find the volume of a rectangular solid. Find the volume of a pyramid.

Find the area of a triangle.

Find the area of a triangle. Example Find the area of the triangle.

Find the area of a triangle. Example Find the area of the triangle.

Find the area of a triangle. Example Find the area of the shaded part in this figure. The entire figure is a rectangle.

Find the area of a triangle. (continued) Example The unshaded part of the figure is a triangle. Subtract to find the area of the shaded part.

Find the volume of a rectangular solid.

Find the volume of a rectangular solid. Example Find the volume of the box.

Find the volume of a rectangular solid. Example Find the volume of the box.

Find the volume of a pyramid.

Find the volume of a pyramid. Example Find the volume of this pyramid with a rectangular base. First find the value of B. Now find the volume.