Answer:

Step-by-step explanation:
we know that
The area of the trapezoid is equal to

step 1
Find the measure of angle DAE
m∠ADC+m∠DAE=180° -----> by consecutive interior angles
we have
m∠ADC = 134°
substitute
134°+m∠DAE=180°
m∠DAE=180°-134°=46°
step 2
In the right triangle ADE
Find the length side AE
cos(∠DAE)=AE/AD

step 3
In the right triangle ADE
Find the length side DE
sin(∠DAE)=DE/AD

step 4
Find the area of ABCD

we have

substitute


Step-by-step explanation:
x/6-1=1/3(9-3x)
3(x-1) = 6(9-3x)
3x-3 = 54 - 18x
3x+18x=54+3
21x=57
X=57/21
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Answer:
y=23
x=28
Step-by-step explanation:
3y=2x+13
8y-4=180
basic algebra, solve 2nd equation then substitute