Question

what type of triangle has a side of 4,7, and 9?

A. acute
B. obtuse
C.right
D. none

Answer 1

find the sum of squares of two smaller sides

Answer 2

\(4^2 + 7^2\)

Answer 3

if it comes lesser than the square of longest side, then the triangle is obtuse
if it comes greater than the square of longest side, then the triangle is acute
if it comes equal to the square of longest side, then the triangle is right

Answer 4

its obtuse right?

Answer 5

Yes !