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In the given figure angleABD=90^(@) ang...

In the given figure `angleABD=90^(@) angleBDA=30^(@)` and `angleBCA=20^(@)` what is the value of `angleCAD`?

A

`10^(@)`

B

`20^(@)`

C

`30^(@)`

D

`15^(@)`

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a
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LUCENT PUBLICATION-LINES AND ANGLES -EXERCISE 4A
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  20. If two angles are complementary to each other, then each angle is :

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