P -6 1 and Q 6 6 are the two ends of the diamet... - JAMB Mathematics 2001 Question
P(-6, 1) and Q(6, 6) are the two ends of the diameter of a given circle. Calculate the radius.
A
6.5 units
B
13.0 units
C
3.5 units
D
7.0 units
Ask EduPadi AI...
Correct Option: A
PQ2 = (x2 - x1)2 + (y2 - y1)2
= 122 + 52
= 144 + 25
= 169
PQ = √169 = 13
But PQ = diameter = 2r, r = PQ/2 = 6.5 units
Please share this, thanks:
#JAMB #JAMB
Add your answer
No responses