# Area of a parabolic arch Calculator

## Calculates the area and circular arc of a parabolic arch given the height and chord.

 height a chord b 6dgt10dgt14dgt18dgt22dgt26dgt30dgt34dgt38dgt42dgt46dgt50dgt area S circular arc L
 $\normal Parabolic arch\\(1)\ area:\hspace{65} S= {\large\frac{2}{3}}ab\\(2)\ circular\ arc:\ L={\large\frac{1}{2}}s+{\large\frac{b^2}{8a}}\ln({\large\frac{4a+s}{b}})\\\vspace{3}\hspace{170} s=\sqrt{b^2+16a^2}\\$

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