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Circles by Mind Map: Circles
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Circles

What?

symmetric shape

the diameter & radius are always in a straight line

shape that has no right-angled,90degree

always 360degree

Funky Foxes

Hazwani

Diameter

circumference

Wei Bo

Area

checking the language

Si En

Why?

What?

Circumference

twice the radius

∏ x radius x 2 OR ∏ x diameter

units

cm

m

formula

Semi-Circle, 1/2 x∏x diameter

quadrant, 1/4 x ∏ x diameter

Why?

build buildings in circular shape

to measure a circular thing

Diameter

units

cm

m

pass through its centre

r x 2

Area

∏ x r x r

units

cm2

m2

Radius

half of diameter

units

m

cm

∏x (d/2)

Radius

∏ x (d/2)

half of diameter

units

m

cm