Question

Find the values of x and y.

a) x = 20, y = 7
b) x = 10, y = 8
c) x = 50, y = 40
d) x = 10, y = 12

Answer 1

the answer is the letter D, everytime that you see a square between 2 or more angles means that the adition of all the angles is 90

Answer 2

4x+5x = 90
9x = 90
x = 10

10y + 10 + 5x = 180
10y + 10 +5(10) = 180
10y + 60 = 180
10y = 120
y = 12

answer
d) x = 10, y = 12