Finding Missing Angles in Triangles

What is the total sum of angles in any triangle?

• 270 degrees

• 180 degrees

• 90 degrees

• 360 degrees

Tags

CCSS.8.G.A.5

In the first example, what are the given angles of the triangle?

• 95 degrees and 35 degrees

• 100 degrees and 30 degrees

• 90 degrees and 24 degrees

• 98 degrees and 31 degrees

Tags

CCSS.8.G.A.5

How do you find the missing angle in a triangle?

• Multiply the given angles

• Add the given angles and subtract from 180

• Subtract the given angles from 360

• Add the given angles and divide by 2

Tags

CCSS.8.G.A.5

What is the missing angle in the first example?

• 51 degrees

• 60 degrees

• 45 degrees

• 66 degrees

Tags

CCSS.7.G.B.5

In the second example, what are the given angles of the triangle?

• 80 degrees and 25 degrees

• 90 degrees and 30 degrees

• 90 degrees and 24 degrees

• 95 degrees and 20 degrees

Tags

CCSS.8.G.A.5

What is the missing angle in the second example?

• 66 degrees

• 56 degrees

• 76 degrees

• 46 degrees

Tags

CCSS.7.G.B.5

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

• Addition

• Subtraction

• Multiplication

• Division

Tags

CCSS.4.MD.C.7

What is the first step in solving for the missing angle?

• Multiply the given angles

• Subtract the given angles from 180

• Add all the given angles

• Subtract the largest angle from 180

Tags

CCSS.7.G.B.5

What is the importance of the number 180 in these calculations?

• It's the sum of angles in a circle

• It's the sum of angles in a triangle

• It's the sum of angles in a pentagon

• It's the sum of angles in a square

After finding the sum of the given angles, what is the next step?

• Add 180

• Subtract from 180

• Multiply by 2

• Divide by the number of angles