Midpoint and length of a line segment
Find the midpoint of a line segment, its length using the distance formula, or a missing endpoint given the midpoint. Unlimited questions, five difficulty levels, and a full worked solution every time — free.
Try one
Find the midpoint of the segment with endpoints A(4, -2) and B(12, -20).
Answer: (8, -11)
See one solved, step by step
Find the length of the segment with endpoints A(-3, 1) and B(3, -7).
📘 Worked solution
1A = (−3, 1), B = (3, −7)These are the two endpoints.
2d = √((x2-x1)2 + (y2-y1)2) = √((6)2 + (−8)2)The length formula comes from the Pythagorean theorem applied to the horizontal and vertical legs.
3d = √(36 + 64) = √(100) = 10(6, 8, 10) is a Pythagorean triple, so the square root is a whole number.
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