A point P moves such that it is equidistant fro... - JAMB Mathematics 2001 Question
A point P moves such that it is equidistant from Points Q and R. Find QR when PR = 8cm and angle PRQ = 30°
A
4√3cm
B
8cm
C
8√3cm
D
4cm
correct option: c
Hint: Make a sketch of the moving points such that the hypotenuse is 8cm and the adjacent x cm.
Cos 30 = x/8
x = 8 cos 30 = 8√3cm
Cos 30 = x/8
x = 8 cos 30 = 8√3cm
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