Question

Can the sides of a triangle have lengths 7, 12, and 18?

Answer 1

Yes

Explanation:

By the Triangle Inequality Theorem, if a supposed triangle has sides
`a`,
`b`, and
`c` where
`c` is the longest side, then
`a+b\geq c`.

Here,
`7+12\geq18`, so the given sides of the triangle can have these lengths