Math 10 AW: April 23 ~ 4.8 Area of Irregular Polygons

Today’s lesson was tricky for sure.

Lets break it down into smaller manageable steps. First we need to have some sort of quadrilateral shape (four sided uneven shape).

Steps to solve

  1. Divide shape from one point to another using a ruler to form 2 triangles.
  2. Divide each triangle into 2 by drawing a perpendicular line from the remaining point to the line you drew in step 1.
  3. Measure each side of the 4 right triangles using a ruler.
  4. Calculate area of each triangle.
  5. Add all the areas together.

Homework is on pg. 111 Q 1

About Mrs. Dildy

I am a math and science teacher in the Saanich school district.
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