Determine the angle for the "Excellent" grade.
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
Step 1: Determine the angle for the "Excellent" grade.
A complete circle in a pie chart represents $360^\circ$. The angles for the other grades are given:
Pass: $120^\circ$
Credit: $80^\circ$
Very Good: The square symbol indicates a right angle, which is $90^\circ$.
Sum of the known angles:
$$120^\circ + 80^\circ + 90^\circ = 290^\circ$$
The angle for the "Excellent" grade is the remaining portion of the circle:
$$\text{Angle for Excellent} = 360^\circ - 290^\circ = 70^\circ$$
