1. Midsegment of a Trapezoid

2. Formula for Midsegment of a Triangle:
base

3. Formula for Midsegment of a Trapezoid:
Midsegment = 𝑏 1 + 𝑏 2 2 b1 b2

4. How does this relate to a Triangle?

6. Similar Quadrilaterals

7. How to tell if QUADRILATERALS are similar?
How did we know if triangles were similar?
Corresponding angles are congruent
Corresponding sides are proportional
What does a proportion look like?
Two fractions set equal to each other
Ex: = or 𝑥 7 = 2 14
How do we solve proportions
Cross Multiplying

8. Are the following pairs similar?
Rectangles: Angles?
Sides?
Parallelograms: Angles?

9. Are the following pairs similar?
3. Trapezoids: Angles?
Sides?

10. Scale Factor What is a scale factor?
The number you multiply the small sides by to get the large sides.