2001
Mathematics
JAMB
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 Answer: 8√3cm
Explanation
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
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√3cmTHIS WEEK's
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