Answer:
CD = 38
Step-by-step explanation:
Since AB = 3x + 2, CD = 3x + 2
To solve for the length of CD, we'll need to solve for x first by using the perimeter formula
Solving for x...





Now that we know what x equals, plug in x into the expression of side CD
CD = 3x + 2
CD = 3(12) + 2
CD = 36 + 2
CD = 38
Therefore, the length of side CD = 38
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Check:
AB = CD | BC = DA
38 + 38 for AB and CD
BC + DA = 2x + 2x
BC + DA = 2(12) + 2(12)
BC + DA = 24 + 24
BC + DA = 48
38 + 38 + 48 = perimeter
perimeter = 124
Answer:
x=45
Step-by-step explanation:
The angles are supplementary
45+3x=180
-45
3x=135
divide by 3
x=45
Answer:
Step-by-step explanation:
Answer:

Step-by-step explanation:
First, divide by 2 from both sides of equation.

Then, solve.

Subtract by 6 from both sides of equation.

Solve to find the answer.
, which is our answer.