An exterior angle of triangle is 80^@ an...

An exterior angle of triangle is `80^@` and interior opposite angles are in the ratio 1:3.find each of interior opposite angles ?

A

`35^@`,`35^@`

B

`20^@`,`60^@`

C

`90^@`,`60^@`

D

`40^@`,`80^@`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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