Math, asked by Harshi666, 1 year ago

find the unknown angle in the following figure. Eloborate ur ans. See that it is clear.

Attachments:

Answers

Answered by Anonymous

The answer is in the attachment.

Attachments:

Anonymous: In which class u are?

Harshi666: so can u define the rule once

Anonymous: Both properties are correct.

Harshi666: exterior angle rule..

Harshi666: Pls state the rule

Anonymous: Exterior angle is equal to the sum of the two interior angles.

Anonymous: This is very common property in triangles

Harshi666: oh.. thanks alot

Harshi666: I got it..

Anonymous: Welcome

Answered by shubhi9643

HERE IS YOUR ANSWER

1st look at triangle ACD

lets apply exterior angle property

I am representing angle with this symbol--> /

/ACB=/CAD +/ADC

75=20+/ADC

/ADC= 75-20

/ADC= 55 DEGREES

now look at triangle ABD

AB=AD (given)

so triangle ABD is isoceles

therefore /ABC=/ADC

x=55 degrees

HOPE IT HELPS

MARK IT AS BRAINLIEST PLEASE

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