Triangles Worksheet

In a triangle, how many total degrees are there?

• it varies

• 360 degrees

• 180 degrees

• 100%

Look at the triangle shown in the diagram. What is the name of this kind of triangle?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

Which type of triangle has all sides of different lengths?

• Scalene

• Right

• Isosceles

• Equilateral

Which type of triangle has one angle equal to 90 degrees?

• Scalene

• Right

• Isosceles

• Equilateral

Which type of triangle has two sides of equal length?

• Scalene

• Right

• Isosceles

• Equilateral

Which type of triangle has all sides of equal length?

• Scalene

• Right

• Isosceles

• Equilateral

Look at the triangle shown in the diagram. What type of triangle is this?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Right triangle

What is the name of this kind of triangle?

• Equilateral

• Isosceles

• Scalene

• Right

Find x. (A triangle is shown with angles labeled 110°, 25°, and x.) Find the measure of the indicated angle.

• 95

• 85

• 45

• 35

A triangle has angle measurements of 26°, 59°, and 95°. What kind of triangle is it?

• right triangle

• obtuse triangle

• none of the above

• acute triangle