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Tohaina

\frac{A\pi d^{2}-B\pi d^{2}}{4}
Tauwehea te \frac{1}{4}.
\pi d^{2}\left(A-B\right)
Whakaarohia te A\pi d^{2}-B\pi d^{2}. Tauwehea te \pi d^{2}.
\frac{\pi d^{2}\left(A-B\right)}{4}
Me tuhi anō te kīanga whakatauwehe katoa.