Step-by-step explanation:
Here
5x+16+7x-3+6x+5 = 180(being sum of triangle)
or, 18x=180-18
or, x= 162/18
so, x = 9
now,
here,
<ACD = <ACB(diagonals of parallelogram bisect eachother)
or, <ACD = 7x-3
or, <ACD = 7×9-3
or, <ACD = 63-3
So, <ACD = 60°
Substitute 4 for x.
y=4*4-2
y=16-2
y=14
According to the properties of parallelograms the diagonals bisect each other. What this means is that each "half" of a diagonal is equal to each other. With this in mind you can set each half equal to each other in an equation like so...
3x + 3 = 6x - 57
Now you must combine like terms
60 = 3x
Isolate x by dividing 3 to both sides
60/3 = 3x/3
20 = x
Hope this helped!
~Just a girl in love with Shawn Mendes
Answer:
y+3= -6(x+9) is the answer
Step-by-step explanation:
