1.an equilateral triangle has 2 vertices at points (3,4) and (-2,3) find the coordinates of the third vertex. 2.the centre of the circle is (2x-1,3x+1).find x if the circle passes through (-3, -1) and length of the diameter is 20 units.

Asked by  | 4th Mar, 2011, 03:57: AM

Expert Answer:

dear student,
Q.2
we use distance formula.
so,
x=2

Answered by  | 4th Mar, 2011, 11:20: PM

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