What is the value of 180- A in Triangle ABC - A- - B - CB- - B - CC- - A - CD- 180- B - C

The correct option is A ∠ B + ∠ C By applying the angle sum property in nbsp;Δ ABC, we get, ⇒∠ A + nbsp;∠ B + ∠ C=180^∘ ⇒ ∠ B + ∠ C=180^∘ ∠ A nbsp; ∴ ...

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Standard VII

Mathematics

Angle Sum Property

What is the v...

Question

What is the value of $180^{\circ} - ∠ A$ in Triangle ABC?

∠ B - ∠ C

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∠ B + ∠ C

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180^{\circ} - (∠ B + ∠ C)

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∠ A + ∠ C

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Solution

The correct option is B $∠ B + ∠ C$

By applying the angle sum property in $Δ A B C$ , we get,
$\Rightarrow ∠ A + ∠ B + ∠ C = 180^{\circ} \Rightarrow ∠ B + ∠ C = 180^{\circ} - ∠ A ∴ 180^{\circ} - ∠ A = ∠ B + ∠ C$

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What is the value of 180∘−∠A in Triangle ABC?

The correct option is B ∠B+∠C By applying the angle sum property in ΔABC, we get, ⇒∠A+∠B+∠C=180∘⇒ ∠B+∠C=180∘−∠A∴180∘−∠A=∠B+∠C

What is the value of $180^{\circ} - ∠ A$ in Triangle ABC?

The correct option is B $∠ B + ∠ C$

By applying the angle sum property in $Δ A B C$ , we get,
$\Rightarrow ∠ A + ∠ B + ∠ C = 180^{\circ} \Rightarrow ∠ B + ∠ C = 180^{\circ} - ∠ A ∴ 180^{\circ} - ∠ A = ∠ B + ∠ C$