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Question Number 49740 by ajfour last updated on 09/Dec/18

Commented by ajfour last updated on 09/Dec/18

$F i n d s i d e l e n g t h s o f a p e n t a g o n$ $o f e q u a l s i d e s i n s c r i b e d w i t h i n$ $t h e e l l i p s e, i n t e r m s o f e l l i p s e$ $p a r a m e t e r s a a n d b .$
	Answered by ajfour last updated on 10/Dec/18

	$l e t A (h, k), B (0, b),$ $E (\frac{s}{2}, - b \sqrt{1 - \frac{s^{2}}{4 a^{2}}})$ $A B = A E = s$ $\Rightarrow h^{2} + {(b - k)}^{2} = s^{2} &$ $\frac{h^{2}}{a^{2}} + \frac{k^{2}}{b^{2}} = 1$ ${(h - \frac{s}{2})}^{2} + {(k + b \sqrt{1 - \frac{s^{2}}{4 a^{2}}})}^{2} = s^{2}$ $. . . . .$
	Commented by ajfour last updated on 10/Dec/18

	$A n y w a y o u t, p l e a s e . .$
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