1. Perimeter and Area

2. AD = 15 inAC = 13 inBD = 10 inDL = 11 in EI = 3 inCH = 4 in A B CD GH E F L K J I

3. Areas of Triangles, Parallelograms, and Trapezoids

4. Parts of a Triangle Any side of a triangle can be called the base of the triangle. The altitude of the triangle is a perpendicular segment from a vertex to a line containing the base of the triangle. The height of the triangle is the length of the altitude BASE ALTITUDE

5. Parts of a Parallelogram Any side of parallelogram can be called the base of the parallelogram. An altitude of a parallelogram is a perpendicular Segment from a line containing the base to a line containing the side opposite the base. The height of the parallelogram is the length of the altitude.

6. Parts of a Trapezoid The two parallel sides of a trapezoid are known as the bases of the trapezoid. The Two nonparallel sides are called the legs of the trapezoid. An altitude of a trapezoid is a perpendicular segment from a line containing one base to a line containing the other base. The height of a trapezoid is the length of an altitude.

7. WX Z V Y 8 6 9 17 10 Find the area