Triangles

Do the segment lengths 9, 12, and 15 form a right triangle?

• Yes
• No
• Maybe
• Pythagoras

Tags

CCSS.8.G.B.8

A triangle has side lengths:
20, 21, 28.  Is this triangle a right triangle, an acute triangle, or an obtuse triangle?

• right
• acute
• obtuse

Tags

CCSS.4.G.A.2

A triangle has side lengths:

5, 14, 12 . Is this triangle a right triangle, an acute triangle, or an obtuse triangle?

• right

• acute

• obtuse

Tags

CCSS.4.G.A.2

Is the triangle formed from Washington D.C. to Cincinnati to Tallahassee right, acute, or obtuse?

• right
• acute
• obtuse

Tags

CCSS.8.G.B.8

What type of special triangle is this?

• 45°-45°-90°
• 30°-60°-90°
• Equiangular
• Equilateral

Tags

CCSS.4.G.A.2

Find the value of y.

• 8
• 4
• 2√3
• 8√3

Tags

CCSS.HSG.SRT.C.8

Find the value of y.

• 11√2
• 11
• 22
• (11√2)/2

What is the length of x in this 45-45-90 triangle?

• 4√2
• 4
• 8
• 4√3

What are u and v in this 30-60-90 triangle?

• v = 2√3 u = 6
• v = 4 u = 4√3
• v = 4 u = 4√2
• v = 4√3 u = 8√3

Tags

CCSS.HSG.SRT.C.8

I have been given the short leg in this 30-60-90 triangle.  How do I find the long leg?

• Multiply 4 by 2
• Multiply 4 by √3
• Multiply 4 by √2
• Divide 4 by 2

Tags

CCSS.HSG.SRT.C.8