In the given figure- if - AOD -120- then find - COA-A- 60-B- 20-C- 120-D- 180-

The correct option is A 60^∘In the given figure, nbsp;∠ AOD = 120^∘. nbsp; ∠ AOD and nbsp;∠ COA form a linear pair. ∴∠ AOD + ∠ COA nbsp; = 180^∘ ⇒∠ C ...

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Standard VII

Mathematics

Linear Pair

In the given ...

Question

In the given figure, if $∠ A O D = 120^{\circ},$ then find $∠ C O A .$

60^{\circ}

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20^{\circ}

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120^{\circ}

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180^{\circ}

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Solution

The correct option is A $60^{\circ}$
In the given figure, $∠ A O D = 120^{\circ} .$

$∠ A O D$ and $∠ C O A$ form a linear pair.
$∴ ∠ A O D + ∠ C O A = 180^{\circ}$

$\Rightarrow ∠ C O A = 180^{\circ} - 120^{\circ} = 60^{\circ}$

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In the given figure, if ∠AOD=120∘, then find ∠COA.

The correct option is A 60∘In the given figure, ∠AOD=120∘. ∠AOD and ∠COA form a linear pair. ∴∠AOD+∠COA=180∘ ⇒∠COA=180∘−120∘=60∘

In the given figure, if $∠ A O D = 120^{\circ},$ then find $∠ C O A .$

The correct option is A $60^{\circ}$
In the given figure, $∠ A O D = 120^{\circ} .$

$∠ A O D$ and $∠ C O A$ form a linear pair.
$∴ ∠ A O D + ∠ C O A = 180^{\circ}$

$\Rightarrow ∠ C O A = 180^{\circ} - 120^{\circ} = 60^{\circ}$