Triangle Sum Theorem

What is the total sum of angles in any triangle?

• 360 degrees

• 90 degrees

• 180 degrees

• 270 degrees

Tags

CCSS.8.G.A.5

What principle is used to find the missing angle in a triangle?

• The sum of angles in a triangle is always less than 180 degrees

• The sum of angles in a triangle is variable

• The sum of angles in a triangle is always more than 180 degrees

• The sum of angles in a triangle is always equal to 180 degrees

Tags

CCSS.8.G.A.5

If two angles in a triangle are 75 degrees and 35 degrees, what is the third angle?

• 60 degrees

• 65 degrees

• 70 degrees

• 75 degrees

Tags

CCSS.8.G.A.5

How do you find a missing angle in a triangle?

• Divide 180 by the sum of two given angles

• Add up two given angles and subtract from 180

• Multiply the two given angles

• Add up two given angles and subtract from 360

Tags

CCSS.8.G.A.5

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

• Add the two given angles

• Divide 180 by two

• Subtract the sum of given angles from 180

• Subtract the largest angle from 180

Tags

CCSS.8.G.A.5

If a triangle has angles of 75 degrees and 35 degrees, what is the sum of these two angles?

• 100 degrees

• 110 degrees

• 120 degrees

• 130 degrees

Tags

CCSS.7.G.B.5

What is the missing angle if two angles of a triangle are 50 degrees and 100 degrees?

• 50 degrees

• 30 degrees

• 20 degrees

• 40 degrees

Tags

CCSS.8.G.A.5

After finding the missing angle, what should the sum of all three angles in a triangle be?

• 360 degrees

• 100 degrees

• 180 degrees

• 200 degrees

Tags

CCSS.8.G.A.5

What is the correct calculation to find the missing angle when two angles are known?

• 180 - sum of two angles

• 180 + sum of two angles

• Sum of two angles / 180

• Sum of two angles - 180

Tags

CCSS.4.MD.C.7

If the sum of two angles in a triangle is 150 degrees, what is the third angle?

• 20 degrees

• 30 degrees

• 50 degrees

• 40 degrees

Tags

CCSS.8.G.A.5