Acute, Obtuse, Right Triangle

In an ___________ triangle one angle is greater than 90 degrees.

• acute

• right

• obtuse

• 360 degrees

A triangle has angle measurements of 71°, 82°, and 27°. What kind of triangle is it?

• acute

• right

• obtuse

• 360 degrees

A triangle has angle measurements of 32°, 137°, and 11°. What kind of triangle is it?

• acute

• right

• obtuse

• 360 degrees

Which type of angle is pictured?

• Acute

• Right

• Obtuse

• Straight

Acute triangles are triangles with only acute angles inside.

Select ALL the acute triangles below.

(There are 2 correct answers)

• 
• 
• 
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Identify the triangle by its sides and angles

• Right Isosceles

• Right Scalene

• Obtuse Isosceles

• Obtuse Scalene

What Type of Triangle is this?

• Right Angled triangle

• Equilateral triangle

• Isosceles triangle

• Obtuse Triangle

• Acute Triangle

What type of triangle is shown?

• Isosceles

• Right

• Equilateral

• Scalene

Identify the triangle by its sides and angles

• Equilateral

• Obtuse Equilateral

• Acute Equilateral

• Acute Isosceles

What type of triangle is shown?

• acute

• obtuse

• right