Pythagoras Theorem
ICSE · Class 9 · Mathematics
All formulas from Pythagoras Theorem in ICSE Class 9 Mathematics. Key equations, constants, and identities for board exam preparation.
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Core Theorem and Converse
AC^2 = AB^2 + BC^2
If BC^2 = AB^2 + AC^2, then ∠A = 90°
Triangle Type Test
AB^2 = AC^2 + BC^2
AB^2 > AC^2 + BC^2
AB^2 < AC^2 + BC^2
Pythagorean Triplets
a^2 + b^2 = c^2
Worked Problem Patterns
PA^2 + PB^2 = AB^2
QA^2 + QB'^2 = AB'^2
AP^2 + DP^2 = AD^2
c^2 = a^2 + b^2 + 2ax
PM^2 + RN^2 = PR^2 + MN^2
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