[1] Answer:
{11, 14, 22}
Explanation:
Triangle Inequality Theorem states that two sides of a triangle must be greater than the third side.
Using this method, the answer is {11, 14, 22} because 11+14>22, 11+22>14, and 14+22>11
[2] Answer:
x = 67°
Explanation:
Same-side interior angles are supplementary.
x° + 113° = 180°
x° = 180° - 113°
x = 67°
[3] Answer:
r = 2°
Explanation:
The little box represents 90 degrees, meaning that these angles are complementary.
9r + 2° + 70° = 90°
9r + 72° = 90°
9r = 18°
r = 2°