Triangle Properties Lesson

​Fill in the blanks in your notes

​Equilateral

Scalene

Isosceles

Fill in the blanks in your notes

​Right Triangle

​Acute Triangle

Obtuse Triangle

​Determine if the lengths below could make a triangle. Write YES or NO

​Determine the measurement of the missing angle

Multiple Choice

In a triangle, how many total degrees are there?

• 100%

• 180 degrees

• it varies

• 360 degrees

Multiple Choice

Find the measure of the missing angle

• 95

• 85

• 35

• 45

Multiple Choice

Do the following side lengths form a triangle?

2inches, 2inches,4inches

• Yes

• No

Multiple Choice

Which side lengths would NOT form a triangle

• 3,4,5

• 2,5,9

• 5,10,12

• 7,9,11

Multiple Choice

In a triangle,

two angles are measured as 110 degrees and 25 degrees.

What is the measure of the third angle?

• 95

• 85

• 35

• 45

Multiple Choice

What kind of triangle is this?

• Right

• Scalene

• Isosceles

• Equilateral

Multiple Choice

What is the "Triangle Inequality Theorem" ?

• The sum of the 2 sides > the third side

• An obtuse angle

• The lengths of a triangle are all the same

• Something Mr. Ogletree made up