1. Areas of Parallelograms, Triangles, & Rhombuses

2. Area of a Parallelogram Parallelogram Area: The area of a parallelogram equals the product of a base & the height to that base. (A = bh) b h

3. Area of a Triangle b h b h Triangle Area Theorem: The area of a triangle equals half the product of a base & the height to that base. (A = bh)

4. Area of a Rhombus Rhombus Area Theorem: The area of a rhombus is equal to one half the product of its diagonals. A B C D M

5. Summary s b h A(square) = s 2 =bh A(rectangle) = bh b h A(||-gram) = bh b h A(rhombus) = bh b h b h A(triangle) =

6. Find the area of the figure. 1. A triangle with base 5.2 m & corresponding height 11.5 m. 2. A triangle with sides 3, 4, & 5. 3. A parallelogram with base & corresponding height. 4. A rhombus with diagonals 4 & 6. 5. An equilateral triangle with sides 8 ft. 6. An isosceles triangle with sides 10, 10, & 16

7. More Examples 5 5 4 4 8 10 5 5 6 8 13 15 5 7.8. 9.