Answer:
right triangle
Step-by-step explanation:
To test for a right triangle, use the Pythagorean theorem.
Let the legs, a and b, be the two shorter sides, and let the hypotenuse, c, be the longest side.
a² + b² = c²
a² + b² = 7.2² + 9.6² = 51.84 + 92.16 = 144
c² = 12² = 144
Since a² + b² = c², the triangle is a right triangle.
