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Types of Triangles


Answer the following multiple-choice questions on types of triangles.

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Multiple choice

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1.

What type of triangle is Δ ABC, where ∠B = ∠C = 74°?

  Equilateral

  Isosceles

  Scalene

  Half-n-half Clue
 

2.

A triangle has angle measurements of 36°, 71°, and 73°. What type of triangle is this?

  Acute

  Right

  Obtuse

  Half-n-half Clue
 

3.

A triangle has angle measurements of 11°, 45°, and 124°. What type of triangle is this?

  Acute

  Right

  Obtuse

  Half-n-half Clue
 

4.

Which triangle has all three angles less than 90°?

  Acute

  Right

  Obtuse

  Half-n-half Clue
 

5.

What type of triangle is Δ ABC, where ∠A = ∠B = ∠C = 60°?

  Equilateral

  Isosceles

  Scalene

  Half-n-half Clue
 

6.

What type of triangle is Δ ABC, where ∠A = 136°, ∠B = 15° and ∠C = 29°?

  Acute

  Right

  Obtuse

  Half-n-half Clue
 

7.

What is a triangle that contains no right angle called?

  Oblique

  Right

  Opaque

  Half-n-half Clue
 


 
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