The answer is below hope it helps.
Refer to c^2=a^2+b^2 (^2 means squared)
C is the hypotenuse and will be the longest measure
So 15^2= 9^2+12^2
225=225
If both sides are equal then the triangle is a right triangle, if the hypotenuse (or c) is lower or higher than you can determine whether it’s obtuse or acute
It would be a right triangle
Yaaaaaayyy hurry let’s gooooo!!!!!
The way i did that in middle school was plot the points then find the slpoe and work it out from there
