median
don steward
mathematics teaching 10 ~ 16
Saturday 30 April 2011
coordinates of an isosceles trapezium
three coordinates of an isosceles trapezium (trapezoid) are:
(1 , 3)
(-2 , 2)
(6 , -2)
what is the 4th coordinate?
prove that the resulting shape is an isosceles trapezium
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