constructing_a_triangle_with_a_compass

=**Constructing a triangle with a compass**=

compass ruler protractor pencil paper
 * Materials:**

A triangle is a closed plane figure that has three sides and three angles
 * What is a Triangle?**



//Not// a compass that tells you, north, south, east, west. It is a geometry compass that has nothing to do with directions. It allows you to measure and draw shapes. A math geometry compass is a device used to determine geometric direction. Usually consisting of a magnetic needle or needle(s) horizontally mounted or suspended and free to pivot until aligned with the earths magnetic field. =Real Life= This picture is of the Regina Twin Towers. This picture has to do with real life and our topic because the building is triangle and they could have used a compass to sketch this ides for this building.
 * What is a compass?**

**How to construct a triangle with a compass.**


1)Use a ruler to draw an 8 cm line for B and C 2)With a compass and the pencil point spread the compass 6 cm apart. 3)Place the compass point on B and draw an arc above B and C. 4)With the compass and pencil point place it 5 cm apart. 5)Place the pencil point on C and draw and arc above B and C. Make sure the arcs intersect. 6)Label the point of the intersection A. 7)Join A and C and join A and B using a ruler to ensure straight lines. 8)Measure the sides using a ruler and label the them with their measurement. 9) Then you must measure the degrees for each angle using a protracter and add them up to make sure they equal 180 degrees. For an **assignment** do the example above and if you want a challenge follow these rules but create your own measurement so you can decide how big the triangle is.
 * NOTE:** *All triangles constructed with a compass has to equal 180 degrees or you have measured the degrees wrong.*