Lesson Worksheet: The Sum of Angles in Quadrilaterals Mathematics • 8th Grade
In this worksheet, we will practice finding a missing angle’s measure in a quadrilateral knowing that the sum of angles in a quadrilateral is 360 degrees.
Q2:
In the given figure, and . Find .
Q5:
In a quadrilateral, if , find .
Q9:
Determine .
Q11:
In the figure, , , and . Determine the measure of all angles in .
- A, , ,
- B, , ,
- C, , ,
- D, , ,
Q12:
Determine .
Q13:
In the figure, if , , , determine .
Q15:
In the given figure, find and .
- A,
- B,
- C,
- D,
- E,
Q16:
Find the measures of the angles of a quadrilateral given that the ratio between them is .
- A, , ,
- B, , ,
- C, , ,
- D, , ,
- E, , ,
Q22:
In a quadrilateral, if , find .
Q23:
In the given figure, and . Find .
Q24:
In the given figure, and . Find .
Q25:
Three angles in a quadrilateral are rad, rad and . Find the measure of the fourth angle in radians giving the answer to three decimal places.