Triangles Worksheet

In a triangle, how many total degrees are there?

• 360 degrees

• it varies

• 100%

• 180 degrees

What is the name of this kind of triangle?

• Scalene

• Right

• Isosceles

• Equilateral

What is the name of this kind of triangle?

• Equilateral

• Scalene

• Right

• Isosceles

Find x. (Diagram: triangle with angles 110°, 25°, and x) Find the measure of the indicated angle.

• 45

• 85

• 35

• 95

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

Refer to the triangle diagram (triangle UVW) with angle V = 51° and a right angle at U. Find the missing angle.

• 39°

• 49°

• 59°

• 29°

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

• yes

• no

Refer to the triangle diagram with angles labeled a, b, c, and an exterior angle d. Which of the following angles are opposite interior angles to angle d?

• Angle b and Angle c

• Angle a and Angle b

• Angle a and Angle b and Angle c

• Angle a and Angle c

Which of the following terms best describes Angle d?

• Exterior angle

• Corresponding angle

• Interior angle

• opposite interior angle

What kind of triangle is this?

• Acute

• Right

• Obtuse