the centre of a circle is at the origin and its radius is 10.tell whether the following points lie on inside or outside the circle and how
a.(-9,4)
b.(-10,0)
c.(0,11)
d.(6,8)
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1
only option (c) lies outside the circle.other than than option (a),(b)and(d) lies inside the circle
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Answer:
Step-by-step explanation:
A. Calculate the distance from the origin to that point to know whether its longer than the radius or shorter than it. because the centre if the circle lies at the origin.
a. 9,4 to 0,0
PQ= root [(x2 - x1)^2 + (y2 - y1)^2]
Root[(0- 9)^2 + (0-4)^2]
Root(81 + 16)
Root( 97)
9.84 is the answer.so, it lies within the circle as it's smaller than the radius.
Hope it helps. Try the rest using the first one. If it doesn't come I'll help you.
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