Answer:
Step-by-step explanation:
1. D, because the opposite angles have to be angle to be a parallelogram
2. C, again opposite angles have to be equal. You have to plug in the different values of x and the only one that works is 21.
ex.
angle J = 3x + 20
angle J = 3(21) + 20
angle J = 83
angle L = 4x-1
angle L = 4(21)-1
angle L = 83
3. the answer is
yes: BK = DK and CK= AK
no: CK= DK and BK= AK
4. the angle would be the same since opposite so 25 degrees
5. C, because the angles are equal to 180... so draw a picture of a square right down the different angle names, they come out to equal or next to each other.
Hope this helped!! Let me know what you got!!
