What is the locus of a point P which moves on one side of a straight line XY, so that the angle XPY is always equal to 90o?
- the perpendicular bisector of XY
- a right-angled triangle
- a circle
-
a semi circle
The correct answer is: D
Explanation
Since XY is a fixed line andXPY = 90o P is on one side of XY
P1P2P3......Pn are all possible cases where
XPY = 90o the only possible tendency is a semicircle because angles in semicircle equals 90o