Angle Theorem for Triangles

Find the value of x.

• x = 27

• x = 53

• x = 49

• x = -16

Solve for x.

• 16

• 11

• 50

• 6

Solve for x.

• 6

• -10

• 7

• -9

Which would be the best classification for the triangle shown?

• acute isosceles

• obtuse scalene

• obtuse isosceles

• acute scalene

Solve for x.

• 13

• 3

• 1

• 4

Use the Exterior Angle Theorem to find the value of x.

• 117

• 94

• 149

• 31

Classify the triangle shown in the picture by its angles.

• Isosceles

• Obtuse

• Acute

• Right

Find the measure of the indicated angle. 

• 34°

• 46°

• 62°

• 36°

Which would be the best classification for the triangle shown?

• acute isosceles

• equiangular scalene

• equiangular isosceles

• equiangular equilateral

Classify the triangle shown in the picture by its sides.

• Isosceles

• Obtuse

• Equilateral

• Scalene