1.

What are the measures of the four angles in the figure?

Answer»

Answer:

HEY MATE!

2x + x - 12 = 180

3x -12=180

3x= 180+12=192

x= 192÷3= 64

so we get first angle 2x= 64×2=128 degree

and

SECOND angle x-12 = 64-12=52 degree

Now, 3Y +y+20=180

so, 4y+20=180

4y=180-20=160

y=160÷4 = 40

so we get third angle 3y= 40×3= 120 degree

and

FOURTH angle y+20= 40+20=60 degree

hope this helps you

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