4 circles. 5 straight line. how many maximum of "intersection point"?

1 ⤊

4 circles. 5 straight line. how many maximum of "intersection point"?

a62 b 63 c 64 d 65

2006-08-20 10:47:50 · 3 answers · asked by hoacuctrang _ 1 in Science & Mathematics ➔ Mathematics

3 answers

(4 * 5) * 2 = 40 intersection points between lines and circles.

4+3+2+1 = 10 int. points between the lines

(3+ 2 + 1) * 2 = 12 int. points between circles

12 + 10 + 40 = 62

2006-08-20 11:01:19 · answer #1 · answered by ___ 4 · 1⤊ 0⤋

62.

Doug

2006-08-20 18:02:32 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋

2006-08-20 17:53:01 · answer #3 · answered by shelbs 2 · 0⤊ 1⤋