## Reflection: Real World Applications Developing the Area Formulas for Regular Polygons - Section 2: Mini Lesson

My students could easily identify the height of right triangles and right angled trapezoids, but they had difficulty with other types of triangles and trapezoids.  I used the analogy of going to the doctor and being measured for your height.  I physically stood and leaned to the side (Woman Leaning) and asked students if this was the best way to have my height measured.  Of course they responded with no and suggested I stand up straight. I asked, "How would you describe the position of my body with the floor?"  Students used words like right angle and perpendicular.  I presented them with pictures of Different Types of Polygons and had them determine the height.

Real World Applications: Finding the Height

# Developing the Area Formulas for Regular Polygons

Unit 15: Geometry
Lesson 1 of 11

## Big Idea: Students discover the relationships between regular polygons.

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Standards:
Subject(s):
Math, Geometry, area of parallelogram, area of rectangle, area of triangle, area of trapezoid
60 minutes

### Ursula Lovings

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