Find the Missing Angle in a Quadrilateral
- Quadrilateral angle sum: 360°
- x = 360° - angle1 - angle2 - angle3
- x is missing angle
-
x =
-
x =
HOW TO USE
- In this exercise, three angles of a quadrilateral are given and you need to find the fourth angle x.
- ▶ Look carefully at the quadrilateral shown in the diagram.
- ▶ Remember that angles in a quadrilateral add up to 360°.
- ▶ Use the equation: x = 360° − angle₁ − angle₂ - angle₃.
- ▶ Calculate the value of x and enter your answer.
- ▶ Click the check button to see if your answer is correct.
- ▶ To try another question, click the New Question button.
- Practice finding missing angles in a quadrilateral!