perplexus.info :: Shapes : Isosceles Crease

Isosceles Crease (Posted on 2015-03-19)

Consider an isosceles triangle PQR with PQ = PR=20 and QR=10 . The vertex P is folded onto the point X in QR, forming the crease EF with E on PQ and F on PR.

Given that QX = 2, find the length of EF.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

64√10/755~=1893787243788789014
Refer to the respective solutions submitted by Charlie in this location, and the solution submitted by Jer in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
exact solution	Jer	2015-03-19 14:16:21
solution	Charlie	2015-03-19 11:28:48

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