Question

A triangle has sides that measure 10 feet, 7 feet, and 12 feet. Will it be acute, obtuse, or right?

gotta show how I got my answer.

Thanks guys!

Answer 1

I need help please

Answer 2

test it with Pythagoras ... a^ + b^2 = c^2

is the sum of the squares of the two shorter sides
... more than , less than , or equal to the square of the longest side

10^2 + 7^2 = 149 ... 12^2 = 144

so the largest angle is less than 90º