SOLUTION: Sixty concurrent lines in a plane divide the plane into how many regions?

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Question 680995: Sixty concurrent lines in a plane divide the plane into how many regions?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
three or more lines in a plane are said to be concurrent if they intersect at a single point
k lines divide the plane into 2k regions
check for +k=1 line
2k=2%2A1=2%29 .....it’ true that one line divides the plane into two regions

check for +k=2 lines
2k=2%2A2=4%29 .....it’ true that two lines divides the plane into four regions
check for +k=3 lines
2k=2%2A3=6%29 .....it’ true that two lines divides the plane into six regions

so, now we can check for +k=60 lines
2k=2%2A60=120%29 ....so, 60 lines divides the plane into 120 regions