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math question (time,speed and distance)

plz solve this.. (time,speed and distance) A starts from a point that is on the circumference of a circle, moves 600metre in the North direction and then again moves 800metre East and reaches a point diametrically opposite the starting point.Find the diameter of the circle? (ans-1000m) if get solve,then explain too... thank you.

Well , Diameter makes an

Well , Diameter makes an angle of 90 anywhere on circle , so 600 and 800 are the 2 sides of equilateral triangle . So diameter ( 3rd side )= 1000 .

May be you meant a right

May be you meant a right angle trinagle thoguh I will take your answer

Find the diameter of the circle

submitted by ajay sahu 600m, 800m and the diameter of the circle forms the right angle triangle within a semi circle i.e. whose hypotonuse is diametre of the circle, and two legs are the chords of the circle. use pythagorous theorem and get the answer

Not an equilateral triangle..

Its not a equilateral triangle...the two sides are 600 and 800.
So i think right angle is the correct word to use...