Finding Missing Angles in Quadrilaterals

What is the total sum of angles in any quadrilateral?

• 270 degrees

• 90 degrees

• 360 degrees

• 180 degrees

How do you find the missing angle in a quadrilateral?

• Subtract each known angle from 360 and add the results

• Multiply all known angles and subtract from 360

• Add all known angles and divide by 4

• Add all known angles and subtract from 360

Tags

CCSS.HSG.C.A.3

What is the first step in finding a missing angle in a quadrilateral?

• Divide 360 by the number of angles

• Add all the known angles together

• Guess the missing angle

• Subtract the largest angle from 360

Tags

CCSS.4.MD.C.7

What is a key property of quadrilaterals mentioned in the video?

• They have at least two acute angles

• They always form a square shape

• They have four equal sides

• The sum of their angles is 360 degrees

Tags

CCSS.HSG.C.A.3

What mathematical operation is primarily used to find the missing angle in a quadrilateral?

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.HSG.C.A.3

Why is it important to know the sum of angles in a quadrilateral?

• To find missing angles

• To measure the perimeter

• To calculate the area

• To determine if it's a square

In the first example, if three angles are 120, 100, and 80 degrees, what is the missing angle?

• 80 degrees

• 100 degrees

• 60 degrees

• 40 degrees

In the first example, after finding the missing angle, what should its value be when added to the other angles?

• 450 degrees

• 360 degrees

• 400 degrees

• 300 degrees

Tags

CCSS.4.MD.C.7

What is the missing angle if the known angles are 70, 132, and 81 degrees?

• 77 degrees

• 107 degrees

• 87 degrees

• 97 degrees

If the sum of three angles in a quadrilateral is 283 degrees, what is the fourth angle?

• 77 degrees

• 103 degrees

• 83 degrees

• 93 degrees

Tags

CCSS.HSG.C.A.3