Triangles

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

• acute triangle
• right triangle
• obtuse triangle
• none of the above

A triangle has side lengths of 19 centimetres, 19 centimetres, and 20 centimetres. What type of triangle is this?

• equilateral triangle

• isosceles triangle

• scalene triangle

• none of the above

When classifying a triangle by its sides, what type of triangle has exactly two equal sides?

• equilateral triangle

• isosceles triangle

• scalene triangle

• none of the above

In a triangle, what is the sum of the interior angles?

• 100%

• 180 degrees

• it varies

• 360 degrees

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Find the measure of the indicated angle. 

• 26
• 36
• 85
• 144

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59° 

Which would be the best classification for the triangle shown?

• acute isosceles
• right scalene
• acute scalene
• obtuse scalene

Which would be the best classification for the triangle shown?

• right isosceles
• obtuse scalene
• obtuse isosceles
• right scalene

What is the value of x?

• 60
• 5
• 10
• -3