1.

In the figure if X : Y and =4:5 what is the measure of Z

Answer»

Answer:

let

x=4a

y=5a

we KNOW that

x+y+90=180   linear pair

4a+5a+90=180

9a =90

a=10

we SAY that

y=z    V.O.A

Y=5(10)

y=50

z=50

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