Triangles Worksheet

In a triangle, how many total degrees are there?

• 180 degrees

• it varies

• 100%

• 360 degrees

What is the name of this kind of triangle?

• Scalene

• Equilateral

• Right

• Isosceles

What is the name of this kind of triangle?

• Right

• Equilateral

• Scalene

• Isosceles

Find x. Find the measure of the indicated angle. 110°, 25°, x (in a triangle)

• 45

• 35

• 95

• 85

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

• none of the above

• acute triangle

• obtuse triangle

• right triangle

Find the missing angle in the triangle shown (with angles 51° and a right angle).

• 59°

• 49°

• 39°

• 29°

Determine if it is possible to form a triangle with the given side lengths: 2 mm, 2 mm, 8 mm.

• no

• yes

Which of the following angles are opposite interior angles to angle d?

• Angle a and Angle b

• Angle a and Angle b and Angle c

• Angle a and Angle c

• Angle b and Angle c

Which of the following terms best describes Angle d?

• Exterior angle

• Interior angle

• opposite interior angle

• Corresponding angle

What kind of triangle is this?

• Obtuse

• Right

• Acute