Final answer:
To determine the possible side lengths of a triangle, we need to consider the sum of the measures of the three angles. Only option 1) 60°, 90°, 30° is a possible set of side lengths for a triangle.
Step-by-step explanation:
To determine the possible side lengths of a triangle, we need to consider the sum of the measures of the three angles. In a triangle, the sum of the angles is always 180 degrees. Let's examine each option:
- 60°, 90°, 30°: The sum of these angles is 180°, so this is a possible set of side lengths.
- 60°, 90°, 60°: The sum of these angles is 210°, which is greater than 180°. Therefore, this is not a possible set of side lengths.
- 60°, 30°, 30°: The sum of these angles is 120°, which is less than 180°. Therefore, this is not a possible set of side lengths.
- 90°, 30°, 30°: The sum of these angles is 150°, which is less than 180°. Therefore, this is not a possible set of side lengths.
Based on our analysis, only option 1) 60°, 90°, 30° is a possible set of side lengths for a triangle.