1. Areas of Triangles and Special Quadrilaterals
Chapter 6 Section 6.7A
Areas of Triangles and Special Quadrilaterals
Find formulas for the area of triangles, and special quadrilaterals. Use these formulas to find the area of triangles, and special quadrilaterals.

2. AREA FORMULA FOR A SQUARE
Postulate
A = s2
Side (s)

3. USE A FORMULA TO FIND THE AREA
The figure is a square
A = s2

4. Area = (Base)(Height): A = bh
AREA FORMULA OF A RECTANGLE
Theorem
Base (b)
Height (h)
Area = (Base)(Height):
A = bh

5. Since the figure is a rectangle, A = bh
USE A FORMULA TO FIND THE AREA
Since the figure is a rectangle, A = bh
A =

6. Area = (Base)(Height): A = bh
AREA FORMULA OF A PARALLELOGRAM
Theorem b c h
Area = (Base)(Height):
A = bh

7. Since the figure is a parallelogram, A = bh
USE A FORMULA TO FIND THE AREA
Since the figure is a parallelogram, A = bh
A =

8. AREA FORMULA OF A TRIANGLE
Theorem
Base (b)
Height (h)

9. Since the figure is a triangle,
USE A FORMULA TO FIND THE AREA
Since the figure is a triangle,
A =