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Transcript
Midsegment of a Trapezoid Formula for Midsegment of a Triangle: base Formula for Midsegment of a Trapezoid: 𝑏1 +𝑏2 Midsegment = 2 b1 b2 How does this relate to a Triangle? Similar Quadrilaterals 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: 2 4 = 1 2 or 𝑥 7 = 2 14 • How do we solve proportions – Cross Multiplying Are the following pairs similar? 1. Rectangles: Angles? Sides? 2. Parallelograms: Angles? Sides? Are the following pairs similar? 3. Trapezoids: Angles? Sides? Scale Factor • What is a scale factor? – The number you multiply the small sides by to get the large sides.
