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Površina i opseg

Kalkulatori za izračunavanje površine i opsega.
Na stranicama se također mogu naći formule, nacrte i proračunske postupke.

Kalkulatori

$$ \begin{aligned} P &= \pi r^2 \\ \\ O &= 2 \cdot \pi r \end{aligned} $$

$$ \begin{aligned} P &= \frac{a h_a}{2} \\ \\ O &= a + b + c \end{aligned} $$

pravokutni trokut

$$ \begin{aligned} P &= \frac{ab}{2} \\ \\ O &= a + b + c \end{aligned} $$

$$ \begin{aligned} P &= a \cdot a = a^2 \\ \\ O &= 4 \cdot a \end{aligned} $$

$$ \begin{aligned} P &= ab \\ \\ O &= 2 \cdot (a + b) \end{aligned} $$

$$ \begin{aligned} P &= a h \\ \\ O &= 4 \cdot a \end{aligned} $$

$$ \begin{aligned} P &= a h_a = b h_b \\ \\ O &= 2 \cdot (a + b) \end{aligned} $$

$$ \begin{aligned} P &= \frac{(a + c)h}{2} \\ \\ O &= a + b + c + d \end{aligned} $$

pravilni peterokut

$$ \begin{aligned} P &= \frac{\sqrt{25 + 10 \sqrt{5}}}{4} a^2 \\ \\ O &= 5 \cdot a \end{aligned} $$

pravilni šesterokut

$$ \begin{aligned} P &= \frac{3 \sqrt{3}}{2} a^2 \\ \\ O &= 6 \cdot a \end{aligned} $$

pravilni mnogokut

$$ \begin{aligned} P &= \frac{1}{4} n a^2 \cot\frac{180^\circ}{n} \\ \\ O &= n \cdot a \end{aligned} $$

Pitagorin poučak

$$ \begin{aligned} c^2 = a^2 + b^2 \end{aligned} $$

Ocjena

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