Answer:
Y=21
X=8
Step-by-step explanation:
In the middle there is a right angle
therefore 27 +3y=90
Y will be 21
Then x+27+63+8x+18=180
x=8
Hence 8+27+3(21)+8(8)+18=180
27 + 3y = 90
3y = 90 - 27
y = 21
27 + (21×3) + x + 8x + 18 = 180 ( angles on a straight line sum up to 180)
9x + 108 = 180
9x = 180 - 108
9x = 72
x = 72/9
x = 8 degrees
