Circles
par Leow Wei Bo
1. Circumference
1.1. twice the radius
1.2. ∏ x radius x 2 OR ∏ x diameter
1.3. units
1.3.1. cm
1.3.2. m
1.4. formula
1.4.1. Semi-Circle
1.4.1.1. 1/2 x∏x diameter
1.4.2. quadrant
1.4.2.1. 1/4 x ∏ x diameter
2. Diameter
2.1. units
2.1.1. cm
2.1.2. m
2.2. pass through its centre
2.3. r x 2
3. Area
3.1. ∏ x r x r
3.2. units
3.2.1. cm2
3.2.2. m2
4. Radius
4.1. half of diameter
4.2. units
4.2.1. m
4.2.2. cm
4.3. ∏x (d/2)
5. Radius
5.1. ∏ x (d/2)
5.2. half of diameter
5.3. units
5.3.1. m
5.3.2. cm
6. What?
6.1. symmetric shape
6.2. the diameter & radius are always in a straight line
6.3. shape that has no right-angled,90degree
6.4. always 360degree
7. Funky Foxes
7.1. Hazwani
7.1.1. Diameter
7.1.2. circumference
7.2. Wei Bo
7.2.1. Area
7.2.2. checking the language
7.3. Si En
7.3.1. Why?
7.3.2. What?