Answer: t = 7°
Explanation:
We know that a straight line is equal to 180 degrees and that the little box represents 90 degrees. Using this information we can create an equation to solve for t.
Given:
180° = 90° + 6t° + 6° + 7t° - 7°
Combine like terms:
180° = 89° + 13t°
Subtract 89 from both sides of the equation:
91° = 13t°
Divide both sides of the equation by 13:
t = 7°