5.1 Triangles Practice

Front

What type of triangle has all sides of equal length?

Back

Equilateral Triangle

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees

Front

If two angles of a triangle are 30 and 70 degrees, what is the measure of the third angle?

Back

80 degrees

Front

What is the term for an angle that is outside of a triangle and formed by one side of the triangle and the extension of another side?

Back

Exterior angle

Front

What do you call a triangle with one angle measuring 90 degrees?

Back

Right Triangle

Front

What type of triangle has at least two sides of equal length?

Back

Isosceles Triangle

Front

What is the term for the longest side of a right triangle?

Back

Hypotenuse

Front

In a triangle, if one angle measures 60 degrees and another measures 50 degrees, what is the measure of the third angle?

Back

70 degrees

Front

What is the term for angles that are opposite each other when two lines cross?

Back

Vertical angles

Front

What do you call a triangle where all angles are less than 90 degrees?

Back

Acute Triangle