# Check if the following are triangles? If yes name them? 1) #ΔTAR, ∠T= 184 and ∠A = 86# 2) #ΔDEZ, ∠D = 60 and ∠E = 60# 3) #ΔCHI, ∠C = 30, ∠H = 60 and ∠I = 90# 4)#ΔJMR, ∠J = 5, ∠M = 120 and ∠R = 67# 5) #ΔKLM, bar(KL) = bar(LM) = bar(MK)#

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Name the following triangles?

1) #ΔTAR, ∠T= 184 and ∠A = 86#

2) #ΔDEZ, ∠D = 60 and ∠E = 60#

3) #ΔCHI, ∠C = 30, ∠H = 60 and ∠I = 90#

4)#ΔJMR, ∠J = 5, ∠M = 120 and ∠R = 67#

5) #ΔKLM, bar(KL) = bar(LM) = bar(MK)#

Name the following triangles?

1)

2)

3)

4)

5)

##### 1 Answer

Jul 29, 2018

Below

#### Explanation:

1) Not a triangle

Reason: angle sum of any triangle is

2) Triangle (equilateral)

Reason: equilateral triangles all have their interior angles equal to

3) Triangle (right-angled)

Reason: angle sum does equal to

4)Not a triangle

Reason: same as 1

5)Triangle (equilateral)

Reason: all sides of an equilateral triangle is the same