Question

) a triangle measures 6 inches by 8 inches by 9 inches. is this triangle a right, obtuse, or acute triangle? why?

Answer 1

you can classification triangles based on sides length

c^2 < a^2 + b^2 = acute

c^2 > a^2 + b^2 = obtuse

c^2 = a^2 + b^2 = right

so

9^2 = 81

6^2 + 8^2 = 36 + 64 = 100

81<100

So the triangle is an acute triangle

Hope it helps