Asked by sweetmemory

how to determine the length of the segment joining each pair of parts A(1;4) and B(-2-7)

Answers

Answered by bobpursley
length^2=(x1-x2)^2+(y1-y2)^2
= (1+2)^2 + (4+7)^2
= 9 + 121=130
length= sqrt(130)
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