Bisecting a Known Line

1
Bisecting a Known Line

• Measure in from both end points or measure off
  from a given center point equal distances.
• Using the tape strike an arc of equal lengths
  from the outside points moving towards the
  center.
• The point at which the arcs meet is exactly 90
  from the center point.

2
3-4-5 Triangle

• Based on principles of a right triangle.
• A triangle with sides of 3,4,and 5 will include a
  90 angle.
• Any multiple of 3-4-5 can be used. In general
  the larger the better.

3
Laying Out Using 3-4-5

• Used to determine a buildings foundation or a
  measure around an object.

4
Lab
5
The End