reto wrote:
O is the origin of the coordinate system above, and A lies in the 2nd quadrant. If angle OAB is a right angle, what are the coordinates of point A?
(1) The length of line segment OA is 5.
(2) The length of line segment AB is 5.
Given : O is the origin of coordinate system.
A lies in 2nd quadrant. /_OAB = 90 deg.
DS: Coordinates of A.
Statement 1: Length of OA = 5 and /_OAB = 90 deg. But OA can be at any angle with x -axis in the 2nd quadrant as length of
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