1. 4
Rational Numbers: Positive and Negative Fractions

2. 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.

3. Find the area of a triangle.

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

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

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

7. 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.

8. Find the volume of a rectangular solid.

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

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

11. Find the volume of a pyramid.

12. 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.