Complete the Square to convert from Standard to Vertex form 1. x2 - 4x + 4

2. x2+8x-20=0

3. x2-8x+16=4

4. x2+6x+4=0

Step-by-step explanation:

The total number of triangles is 5

The total number of all shapes is 13

The ratio is triangles to total

The ratio is 5 to 13

Note

This problem is not very well defined. Notice the circle at the bottom left. It's less than 1/2 a circle. Question: do you count it or don't you. The answer to that question will influence other partial figures.

All you do is count the total number of figures and the number of triangles. I did count the part circle on the lower left as with the triangles that are missing their tops.