Classifying Triangles & Finding Missing Angles

Complementary angles add up to 180 degrees

• True

• False

Tags

CCSS.7.G.B.5

How many acute angles do Acute Triangles need to have?

• 1

• 2

• 3

What type of triangle has 3 different side lengths and angles?

• Obtuse

• Isosceles

• Scalene

• Acute

Find the missing angle in the triangle.

• 65 degrees

• 180 degrees

• 115 degrees

Find the missing angle in the triangle.

• 180 degrees

• 142 degrees

• 90 degrees

• 38 degrees

Tags

CCSS.7.G.B.5

Find the missing angle in the triangle.

• 90 degrees

• 65 degrees

• 115 degrees

• 180 degrees

How many congruent sides do Isosceles triangles have?

• 1

• 2

• 3

Find the missing angle in the triangle.

60, x, x

• x = 45 degrees

• x = 60 degrees

• x = 90 degrees

• x = 30 degrees

Find the missing angle in the triangle.

132, x, x

• 24 degrees

• 48 degrees

• 180 degrees

• 90 degrees

Find the missing angle in the triangle.

60, 50, x + 10

• x = 70

• x = 80

• x = 60

• x = 90