Question

Decide whether the following sides could make a triangle, write yes or no. Then explainwhy you chose your answer.

Answer 1

we have the length sides

15,12,9

Remember that

The Triangle Inequality Theorem states that the sum of any two sides of a triangle must be greater than the measure of the third side

You only need to see that the two smaller sides are greater than the largest side

so

12+9 > 15

21 > 15 -----> is true

that means

the answer is

YES, the following sides can make a triangle