Calculating Angle Measures in Triangles and Quadrilaterals

How many sides does a quadrilateral have?

• 4

• 3

• 5

• 6

Which shape is not a quadrilateral?

• Square

• Parallelogram

• Rectangle

• Triangle

What is the total sum of angles in a triangle?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees

If two angles in a triangle are 45 and 55 degrees, what is the third angle?

• 80 degrees

• 85 degrees

• 75 degrees

• 90 degrees

How do you find an unknown angle in a triangle?

• Divide 180 degrees by the number of known angles

• Multiply the known angles

• Add the known angles and subtract from 360 degrees

• Subtract the known angles from 180 degrees

If a triangle has angles of 60 and 70 degrees, what is the measure of the third angle?

• 40 degrees

• 50 degrees

• 60 degrees

• 70 degrees

What is the total sum of angles in a quadrilateral?

• 360 degrees

• 180 degrees

• 270 degrees

• 90 degrees

Given three angles in a quadrilateral are 107, 73, and 63 degrees, what is the fourth angle?

• 115 degrees

• 117 degrees

• 110 degrees

• 120 degrees

What is the first step to solve for an unknown angle in a quadrilateral?

• Multiply all the known angles

• Add all the known angles

• Divide 360 degrees by the number of known angles

• Start with 360 degrees and subtract known angles

A quadrilateral has three angles measuring 90, 80, and 100 degrees. What is the measure of the fourth angle?

• 90 degrees

• 100 degrees

• 80 degrees

• 95 degrees