Nevertheless, if we want to make all the values into whole numbers, we will have to change the area of Triangle
The area of ABD is 1/2xh by OT, and similarly, the area of triangle
DBC is 1/2yh.
Learn the formulae you have been given for: area of triangle
, areas of parallelogram, area of circle, circumference of circle.
We use the formulas for the area of triangle
ABC and get the square of the altitude A[F.
As such, we see the importance of revising triangles carefully, and putting special emphasis on helping students see the explicit link between area of triangle
and area of parallelogram.