Amar

Hi, there is a sweet shop in Nagpur where they make SonRolls, CocoRolls etc. anyone know the name and address please do let me know. thanks!

NOTE: Using trigonometry, coordinates, or any advanced maths to solve this is PROHIBITED.

Draw an isosceles triangle ABC, so that AB=AC, with a 20 degree angle at point A. The other two angles will obviously be 80deg each.

Point D is on side AC, so that angle ABD is 20deg (and so angle DBC is 60deg)

Point E is on side AB, so that angle ACE is 30deg (and so angle ECB is 50deg).

Connect D and E, and also place point F at the intersection of BD and CE. Look at new triangle formed with these 3 points.

Find the angle EDF (or angle DEF, whichever you like - one gives you another easily).

Please provide a simple geometric solution, not an answer.

BTW: This is a repost of a question http://answers.yahoo.com/question/index;_ylt=AjeIC...

It was asked by someone last year, but no satisfactory answer came up. It is wrthwhile to review that post, as some of the proposed solutions were quite instructive.

Can you think of any? I'm supposed to be helping my daughter with her assignment - "Man's impact on the Environment".

Thinking up examples of *negative* impact is easy - but finding *positive* examples ...

Yeah, I know - a homework question - at my age!!

Poe wrote:

"All that we see or seem

Is but a dream within a dream"

What did he mean by that?

... Could that explain the quality of some of the answers posted here?