Five students are to be selected from 6 grade 9 students, 10 grade 10 students, 8 grade 11 students, and 9 grade 12 students. In how many ways could they all be from the same grade?

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length