Mensuration
ICSE · Class 7 · Mathematics
All formulas from Mensuration in ICSE Class 7 Mathematics. Key equations, constants, and identities for board exam preparation.
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Formulas
Perimeter and Circumference Formulas
P = 2(l + b)
l = P/2 - b
b = P/2 - l
P = 4s
Perimeter = a + b + c
Area Formulas
Area = l × b
Area = s² = 1/2 × (diagonal)²
Area = 1/2 × base × height
Area = √(s(s-a)(s-b)(s-c))
Area = 1/4 × b × √(4a² - b²)
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