Triangle Lesson Check

Classify the triangle by angles and sides.

• Right Scalene
• Right Isosceles
• Acute Isosceles
• Right Obtuse

Classify the triangle by angles and sides.

• Obtuse Scalene
• Obtuse Isosceles
• Acute Isosceles
• Equiangular Scalene

Triangles can be classified by what two things?

• Side length and angle measure

• Number of Vertices and number of sides

• Angle color and side height

• Number of points and number of lines

A triangle with 3 congruent sides is called a(n) ______

• Isosceles Triangle

• Equilateral Triangle

• Obtuse Triangle

• Irregular Triangle

A scalene triangle has _____

• 3 different angle names

• no congruent sides

• all sides congruent

• 3 congruent angles

A triangle has angle measurements of 54°, 52°, and 74°. What kind of triangle is it?

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

A triangle has angle measurements of 74°, 90°, and 16°. What kind of triangle is it?

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

What do the interior angles in a triangle have a sum of?

• 180
• 90
• 360
• 270

Find the value of x.

• A
• B
• C
• D

Find the measure of the indicated angle.