Circles — Formula Sheet
ICSE · Class 8 · Mathematics
6 formulas from Circles (ICSE Class 8 Mathematics) on one page, grouped by topic. Part of the ICSE Class 8 Mathematics syllabus.
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Formulas and Key Relations
Important Formulas
Length of the diameter COD = OC + OD = Radius + Radius = 2 × Radius
Radius = Diameter/2
PA^2 + OA^2 = OP^2
OP^2 = PA^2 + OA^2
PA = PB
Key relations
Diameter = 2 × radius and radius = diameter/2.
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