Length
Outcomes
-
MA4-12MG
Calculates the perimeters of plane shapes and the circumferences of circles
- Find perimeters of parallelograms, trapeziums, rhombuses and kites (ACMMG196)
-
Investigate the relationship between features of circles, such as the circumference, radius and diameter; use formulas to solve problems involving circumference (ACMMG197)
-
Develop and use the formulas to find the circumferences of circles in terms of the diameter d or radius r:
Circumference of a circle = pi x d
Circumference of a circle = 2 x pi x r
Examples
-
Find the perimeters of simple composite figures consisting of two shapes, including quadrants and semicircles
Examples
-
Develop and use the formulas to find the circumferences of circles in terms of the diameter d or radius r:
Circumference of a circle = pi x d
Circumference of a circle = 2 x pi x r