Question

Determine if the side lengths 9,9,and 17 form a triangle. If if its a triangle, classify it by its sides​

Answer 1

isosceles triangle

Explanation:

two of its sides are equal

Answer 2

Yes it is a triangle and is an isosceles one as well.

Explanation:

Let's try it out by using the Triangle Equality Theorem!

a+b > c, a+c > b, and b+c > a

a = 9

b = 9

c = 17

18 > 17 YES

9 + 17 > 9 YES

9 + 17 > 9 YES

It all checks out!

Since two sides are equal in length, it is an isosceles triangle.