A triangle has sides that measure 3 cm, 4 cm, and 5 cm. What type of triangle is it?

Dec 13, 2016

Scalene and right

Explanation:

Since all three sides have different lengths, it is a scalene triangle. But, we must test for a second feature. Using Pythagorus' theorem

${a}^{2} + {b}^{2} = {c}^{2}$

we find ${3}^{2} + {4}^{2} = {5}^{2}$

9 + 16 = 25

So, these sides also cause it to be a right triangle.