In a ABC - - A -50- and - B -70- What is the value of - C -A- 50-B- 60-C- 70-D- 80-

The correct option is B 60^∘We know that the sum of all the angles of a triangle is nbsp;180^∘ Therefore, nbsp; ∠ A+ ∠ B + ∠ C=180^∘ 50^∘+ 70^∘ nbsp;+ ∠ ...

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Byju's Answer

Standard IX

Mathematics

Triangles

In a ABC , ∠ ...

Question

In a $△ A B C$ , $∠ A = 50^{\circ}$ and $∠ B = 70^{\circ}$ What is the value of $∠ C$ ?

50^{\circ}

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60^{\circ}

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70^{\circ}

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80^{\circ}

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Solution

The correct option is B $60^{\circ}$
We know that the sum of all the angles of a triangle is $180^{\circ}$
Therefore,
$∠ A + ∠ B + ∠ C = 180^{\circ}$
$50^{\circ} + 70^{\circ} + ∠ C = 180^{\circ}$
$∠ C = 60^{\circ}$

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In a △ABC, ∠A=50∘ and ∠B=70∘ What is the value of ∠C?

The correct option is B 60∘We know that the sum of all the angles of a triangle is 180∘ Therefore, ∠A+∠B+∠C=180∘ 50∘+70∘+∠C=180∘ ∠C=60∘ ​

In a $△ A B C$ , $∠ A = 50^{\circ}$ and $∠ B = 70^{\circ}$ What is the value of $∠ C$ ?

The correct option is B $60^{\circ}$
We know that the sum of all the angles of a triangle is $180^{\circ}$
Therefore,
$∠ A + ∠ B + ∠ C = 180^{\circ}$
$50^{\circ} + 70^{\circ} + ∠ C = 180^{\circ}$
$∠ C = 60^{\circ}$