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Area of a Circle and a Sector

Question 3 • *CR CCSS Math 2 S2 [M2960OX]

The point (0, 5) lies on a circle that is centered at the origin. Does (–3, –4) also lie on the circle?

Answer
A
yes
B
no

Explanation

A circle centered at the origin contains points that are the same distance from (0, 0). The point (0, 5) is 5 units from the origin, and (–3, –4) is also 5 units away because √(–3² + (–4)²) = √25 = 5, so the answer is yes.

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