Perimeter & area of circles and segments Flashcards
1
Q
How do you work out the circumference?
A
π x Diameter
2
Q
How do you work out the diameter?
A
Radius²
R²
3
Q
How do you work out the radius?
A
Half the diameter
4
Q
How do you calculate the length of the arc?
A
θ
—– x π x D
360
θ = Angle of the segment
5
Q
How do you find out the perimeter?
A
arch length + The 2 Radius lengths
6
Q
How do you find out the area?
A
θ
—– x π x R²
360
