Question

If angle 3 = 135° then the value of angle 1 + angle 4 ? ​

Answer 1

Step-by-step explanation:

Here if 3 is 135 degree

then 1+ angle 4 = angle4 +1+135=180

angle 4+ 1=45 degree

Answer 2

Answer:

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Step-by-step explanation:

Angle(3)=angle(2) { Vertically opposite angle }

∴  Angle(2)=135 degree

angle(1)+angle(2)=180 degree (linear pair)

angle(1) + 135=180

angle(1)=180-135

angle(1)=45 degree

angle(1)=angle(4) {vertically opposite angle}

∴  Angle(4)=45 degree Then

Now Angle(1)+Angle(4)

= (45+45)degree

= 90 degree