Question

Triangle ABC is shown on the grid.


What is the perimeter of triangle ABC?

9 + units
9 + units
9 + units
9 + units

Answer 1

I don’t have the grid image or the coordinates of A, B, and C. Can you either upload the picture or tell me the coordinates of A, B and C (or describe their positions on the grid)?

How I’ll compute it once I have the points:
1. Read coordinates A(x1,y1), B(x2,y2), C(x3,y3).
2. Compute side lengths with the distance formula:
- AB = sqrt[(x2−x1)^2 + (y2−y1)^2]
- BC = sqrt[(x3−x2)^2 + (y3−y2)^2]
- CA = sqrt[(x1−x3)^2 + (y1−y3)^2]
3. Perimeter = AB + BC + CA. Simplify radicals if possible.

If you paste the coordinates or the image I’ll compute the numeric/simplified perimeter.