Question

In figure, if AB || CD, CD || EF and y : z = 4 : 5, then x =
Pls help guys.

Answer 1

Answer:

100°

Step-by-step explanation:

$Angle(GHD) = z (Corresponding)\\Angle (GHC) + Angle (GHD) = 180 (LinearPair)\\y + z = 180\\y : z = 4 : 5\\so,\\y = 4a\\ z = 5a\\\\4a + 5a= 180\\\\9a = 180\\a= 20\\y = 4a = 80\\80 + x = 180 (Co-interior)\\x = 180 - 80\\= 100 degrees$

Answer 2

Answer:

Ans is 100 .

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