[geometry] if m∠deg= 5x - 4 m∠gef=7x - 8 m∠deh= 9y + 5 find the values of x and y answer this question and tell me how to do it .

we are given

DEF is a line

so, sum of angles must be 180

angle(DEG)+angle(GEF)=180

now, we can plug values

.........Answer

vertically opposite angle must be equal

angle(GEF)=angle(DEH)

now, we can plug values

now, we can plug x=16

...................Answer

the answer is 18 units because there are 18 small cubes inside the rectangle

hope this and p.s i am also in k12

step-by-step explanation: