1. Theorem The area A of a triangle is
where b is the base and h is the altitude drawn to that base.

2. Right triangle: sides a, b hypotenuse c Area is (1) ½ ab (2) ½ bc (3) ½ ac

3. a h b

4. Theorem
The area A of a triangle equals one-half the product of two of its sides times the sine of its included angle.

6. Theorem Heron’s Formula
The area A of a triangle with sides a, b, and c is

7. a, b, c in inches. What are the units for triangle area
a, b, c in inches. What are the units for triangle area? (1) inches (2) square inches (3) cubic inches