a) The radius length of the circle whose center is \( (7, 4) \) and passes through \( (3, 1) \) equals ...... length units.
(a) 5
(b) -5
(c) 2.5
(d) 25
MR/Nasef.N
b) A circle has its center at the origin and its radius length is 2 length units. Which of the following points belongs to the circle?
(a) \( (1, 2) \)
(b) \( (-2, 1) \)
(c) \( (\sqrt{3}, 1) \)
(d) \( (\sqrt{2}, 1) \)
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