Finding Missing Angles in Quadrilaterals

What is the total sum of the interior angles of a quadrilateral?

• 270 degrees

• 90 degrees

• 180 degrees

• 360 degrees

What principle is used to calculate missing angles in a quadrilateral?

• Sum of angles equals 180 degrees

• Sum of angles equals 360 degrees

• Each angle is less than 180 degrees

• Each angle is less than 90 degrees

If three angles in a quadrilateral are 102, 91, and 78 degrees, what is the fourth angle?

• 92 degrees

• 89 degrees

• 88 degrees

• 90 degrees

How do you verify the calculated angle in a quadrilateral?

• Add all angles and compare with 360 degrees

• Subtract the smallest angle from 360 degrees

• Multiply all angles

• Add all angles and compare with 180 degrees

After calculating a missing angle, what is the next step to ensure accuracy?

• Divide each angle by 2

• Multiply each angle by 2

• Add all angles to check if they sum to 360 degrees

• Subtract from 360 degrees

What is the missing angle if the other three angles in a quadrilateral are 91, 89, and 73 degrees?

• 105 degrees

• 108 degrees

• 106 degrees

• 107 degrees

To find a missing angle in a quadrilateral, you subtract the sum of known angles from what total?

• 300 degrees

• 270 degrees

• 180 degrees

• 360 degrees

What is the sum of 91, 89, and 73 degrees?

• 253 degrees

• 254 degrees

• 252 degrees

• 255 degrees

If the sum of three angles is 253 degrees, what is the missing angle to reach 360 degrees?

• 107 degrees

• 106 degrees

• 105 degrees

• 108 degrees

What is the final step after calculating all angles in a quadrilateral?

• Verify by dividing each angle

• Verify by subtracting from 180 degrees

• Verify by multiplying angles

• Verify by adding all angles to see if they equal 360 degrees