Q 19 

Asked by shubhgoel7a | 20th Sep, 2019, 09:58: PM

Expert Answer:

begin mathsize 16px style angle 2 space equals space angle 4 space space space space space space space space space space.... space Vertically space Opposite space angles
rightwards double arrow space 2 straight x space plus space 30 space equals space straight x space plus space 2 straight y
rightwards double arrow space straight x space minus space 2 straight y space equals space minus 30 space space..... space left parenthesis straight i right parenthesis
angle 4 space equals space angle 6 space space space space space space space space space space space space space.... space Alternate space angles space space space space
rightwards double arrow straight x space plus space 2 straight y space equals space 3 straight y space plus space 10
rightwards double arrow straight x space minus space straight y space equals space 10 space space space.... space left parenthesis ii right parenthesis
Subtracting space left parenthesis ii right parenthesis space from space left parenthesis straight i right parenthesis comma space we space get
straight y space equals space 40 space and space straight x space equals space 50
angle 8 space equals space angle 6 space space equals space 3 straight y space plus space 10 space equals space 3 left parenthesis 40 right parenthesis space plus space 10 space equals space 130 to the power of ring operator space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space........ space Vertically space opposite space angles
angle 5 plus angle 8 space equals space 180 to the power of 0 space space space..... space Linear space pair
rightwards double arrow space angle 5 space space equals 180 to the power of 0 space space minus 130 to the power of 0 space equals space 50 to the power of 0
end style

Answered by Yasmeen Khan | 23rd Sep, 2019, 07:07: PM

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