Question

if AB||CD and CD||EF and x:y::7:3, then z=?

Answer 1

Heya !!


given that x : y = 7 :3




hence , let their ratio be k


therefore ,


7k + 3k = 180 { co - interior angle }


10k = 180 °

=> k = 18




< x = 7 × 18 = 126 °



< y = 3 × 18 = 54 °



now ,


< y = < z = 54 ° { crossponding angle }



hence , the Value of < z = 54 °




hope it helps you dear !!!


thanks !!!


good day
☺☺