Question

Could you please help

Answer 1

From the trapezoid,

x + ( 31 + 38 ) + y = 180 ------------ equ 1

x + y + 69 = 180

x + y = 180 - 69

x + y = 111 .................... equ 2

Also, x + 31 + 90 = 180

x + 121 = 180

x = 180 -121

x = 59.....................equ 3

put x = 59 in equ 2 ,

59 + y = 11

y = 111 - 59

y = 52 ------------------equ 4