Length....

Geometry Level 3

In the figure above, A A , B B , C C and D D are points on the circle such that the straight lines A B AB and C D CD intersect at E E . Let [ B C E ] [BCE] and [ A D E ] [ADE] denote the areas of the triangles Δ B C E \Delta BCE and Δ A D E \Delta ADE , respectively.

If [ B C E ] [ A D E ] = 25 \dfrac{[BCE]}{[ADE]}=25 and A E = 1 AE=1 , find the length of C E CE .


This is a part of the Set .


The answer is 5.000.

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1 solution

Alan Yan
Aug 31, 2015

This is simply similar triangles with a ratio of 5 : 1 5:1

Exactly so.

Rakhi Bhattacharyya - 5 years, 2 months ago

And both are similar because of SSS and you can use the intersecting chords theorem to find the answer

Rio Schillmoeller - 1 year, 8 months ago

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