Use the picture below to answer the question on the piece of paper given to you.

Figure 1: Use the triangle below to answer the two questions under "Triangle Angle Sum Investigation".

FIGURE 2

Task 1

In figure 2, draw as many line segments as you can from point A to the other vertices, without tracing over a line that is already there. How many triangles did you break the shape into? Record this in your table.

Task 2

If the sum of the angles in each triangle is 180 degrees, how many degrees are in the sum of the quadrilateral in figure 2? Record this in your table.

FIGURE 3

Task 3

In figure 3, draw as many line segments as you can from point A to the other vertices, without tracing over a line that is already there. How many triangles did you break the shape into? Record this in your table.

Task 4

If the sum of the angles in each triangle is 180 degrees, how many degrees are in the sum of the pentagon in figure 3? Record this in your table.

FIGURE 4

Task 5

In figure 4, draw as many line segments as you can from point A to the other vertices, without tracing over a line that is already there. How many triangles did you break the shape into? Record this in your table.

Task 6

If the sum of the angles in each triangle is 180 degrees, how many degrees are in the sum of the hexagon in figure 4? Record this in your table.

FIGURE 5

Task 7

In figure 5, draw as many line segments as you can from point A to the other vertices, without tracing over a line that is already there. How many triangles did you break the shape into? Record this in your table.

Task 8

If the sum of the angles in each triangle is 180 degrees, how many degrees are in the sum of the heptagon in figure 6? Record this in your table.

Task 9

Complete the last row on your table without using a picture of the octagon based on your previous observations.