SS7.2
Develop and apply formulas for determining the area of:
  • triangles
  • parallelograms
  • circles.

[CN, PS, R, V]

Indicators for this outcome
(a)

Illustrate and explain how the area of a rectangle can be used to determine the area of a triangle.

(b)

Generalize, using examples, a formula for determining the area of triangles.

(c)

Illustrate and explain how the area of a rectangle can be used to determine the area of a parallelogram.

(d)

Generalize, using examples, a formula for determining the area of parallelograms.

(e)

Illustrate and explain how to estimate the area of a circle without the use of a formula.

(f)

Illustrate and explain how the area of a circle can be approximated by the circumference of the circle times its radius.

(g)

Generalize a formula for finding the area of a circle.

(h)

Solve problems involving the area of triangles, parallelograms, or circles.

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