Properties of Triangles

Classify this triangle:

• Right

• Isosceles

• Scalene

• Equilateral

Tags

CCSS.4.G.A.2

Classify this triangle:

• Right

• Scalene

• Isosceles

• Equilateral

Tags

CCSS.4.G.A.2

Classify this triangle:

• Right

• Scalene

• Isosceles

• Equilateral

Tags

CCSS.4.G.A.2

Solve for x:

• x = 25°

• x = 12°

• x = 65°

• x = 10°

Tags

CCSS.8.G.A.5

Find the measure of the indicated angle and classify the triangle:

• x = 45° ; isosceles

• x = 35° ; scalene

• x = 35° ; isosceles

• x = 45° ; scalene

Tags

CCSS.8.G.A.5

What is the measure of the unknown angle?

• 7°

• 35°

• 40°

• 10°

Tags

CCSS.8.G.A.5

Can the side lengths 9, 3, and 8 create a complete triangle? Why or why not?

• Yes because $9+3=12$ and $12>9$

• No because $3+8=11$ and $11>9$

• Yes because $3+8=11$ and $11>9$

• No because $9+3=12$ and $12>9$

Tags

CCSS.7.G.A.2

Which set of numbers represent the lengths of the sides of a triangle?

Select ALL that apply.

• {2, 5, 9}

• {6, 6, 7}

• {6, 4, 2}

• {7, 8, 5}

Tags

CCSS.7.G.A.2

Which equation can be used to find the value of x?

• 11x + 25x = 90

• 11x + 25x + 9x = 90

• 11x + 25x = 180

• 11x + 25x + 9x = 180

Tags

CCSS.8.G.A.5

In  $\Delta ABC$   ,  $\angle A=\left(2x+30\right)\degree$  , $\angle B=\left(3x-10\right)\degree$ , and  $\angle C=\left(7x-32\right)\degree$  . 

What is the $m\angle A$  ?

• 16°

• 62°

• 38°

• 80°

Tags

CCSS.8.G.A.5