Grade 4 - Progress in Mathematics

How far is point Afrom point B?

How far is point Bfrom point C?

• To find the length of a vertical line segment,
  find the difference between y-coordinates.
  A(2, 7 )
  B(2, 3 )
  7
  3  4 Aand Bare 4 units apart.
  So, line segment is 4 units long.


• To find the length of a horizontal line
  segment, find the difference between
  x-coordinates.
  B ( 2 ,3)
  C( 5 ,3)
  5
  2  3 Band Care 3 units apart.
  So, line segment is 3 units long.

Give the length of the line segment that connects

each set of points. Tell whether the line is vertical

or horizontal.

1. (3,8) and (3,4) 2. (2,8) and (2,4) 3. (3,5) and (6,5)


2. (3,6) and (3,5) 5. (2,8) and (5,8) 6. (1,4) and (9,4)


3. (2,2) and (7,2) 8. (3,8) and (3,2)


4. Name two points that form a 5-unit vertical line
   segment when they are connected.


5. Name two points that form a 3-unit horizontal line
   segment when they are connected.

BC

AB

Coordinate Geometry: Distance

1

8 7 6 5 4 3 2 1 0

2 3 4 5 6 7 8

A

B C

2.2

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