Answer:
No, it isn't a right triangle
Step-by-step explanation:
AB+ BC + AC= 22 parts whole postulate
8 + 5 + AC = 22 substitution
AC= 22- 13= 9 Algebra
by judging the sides of triangle, we can tell that AC is the longest side therefore is would be the hypotenuse
AC= c
AB= a
CB = b
a^2 + b^2 = c^2 pythagorean theorem
8^2 + 5^2 = 9^2 substitution
64 + 25 = 81 Algebra
89 = 81
ABC is NOT a right triangle
I hope this helps!!!
