Name the type of the given triangle.
$∆ L M N$ with $m ∠ L = 30 °$ , $m ∠ M = 70 °$ and $m ∠ N = 80 °$

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Solution

From given information,
Here all the given angles is of different measure .
And we know triangle having all three angles of unequal measure are scalene triangle.
Hence, given triangle is scalene triangle.

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Question 1 (f)

Name the type of the following triangle:

$Δ L M N$ with $∠ L = 30^{\circ}, ∠ M = 70^{\circ} a n d ∠ N = 80^{\circ}$ .

Construct a triangle LMN, given LM = 5 cm, MN = 6.8 cm and ∠LMN = 70°. Write the steps of construction.

Δ A B C

Δ D E F

B C = 6 cm, A C = 4 cm, m ∠ B = 35^{\circ},

E F = 6 cm, D F = 4 cm, m ∠ E = 35^{\circ}

Δ A B C ≅ Δ D E F

△ A B C, m ∠ A + m ∠ C = m ∠ B

A C : A B = 25 : 24

B C = 21

△ A B C

Name the type of triangle:

$△ L M N$ with $∠ L = 30 °$ , $∠ M = 70 °$ and $∠ N = 80 °$

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