# A triangle has sides with lengths: 6, 1, and 9. How do you find the area of the triangle using Heron's formula?

Triangle doesn't exist because longest side $9 > 6 + 1$
The sides of triangle are a=6, b=1\ &\ c=9, we see that the longest side $c = 9$ is greater than the sum of other two sides $a + b = 6 + 1 = 7$ hence such a triangle doesn't exist