Area A 6units²
Perimeter P 12units
Semiperimeter s 6units
Step-by-step substitution
- P = a + b + c = 3 + 4 + 5 = 12
- s = P / 2 = 12 / 2 = 6
- A = √(s(s−a)(s−b)(s−c)) = √(6·3·2·1) = 6
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