Question is Incomplete,Complete question is given below;
Figure ABCD is a parallelogram.
What are the lengths of line segments AB and BC?
AB = 4; BC = 16
AB = 4; BC = 8
AB = 10; BC = 20
AB = 10; BC = 28
Answer:
AB = 10 ;BC =28.
Explanation:
The Diagram is missing in the question we have attached the diagram for your reference.
Given:
AB =
![3y -2](https://img.qammunity.org/2021/formulas/mathematics/high-school/ied2rq142pipvdvr1tqj7nqc2ra326gi01.png)
DC =
![y+6](https://img.qammunity.org/2021/formulas/mathematics/high-school/7lf0ht6753pnuu2iq3nvd3uak7cdpsyvmk.png)
BC =
![x+12](https://img.qammunity.org/2021/formulas/mathematics/high-school/cuxiwu05rqgedgykfctj9nb77vrtd1zl44.png)
AD =
![2x-4](https://img.qammunity.org/2021/formulas/mathematics/high-school/3t1ds8z7xhmgofqxogf35wu6dfeh2ayku6.png)
We need to find the lengths of AB and BC.
Solution:
Since given that Figure ABCD is a parallelogram.
"The opposite side of parallelogram are equal."
Hence we can say that;
AB = DC
Substituting the value we get;
![3y-2=y+6](https://img.qammunity.org/2021/formulas/mathematics/high-school/r2h2jw5cecmzh0nd9efkxz2sufx63kalzr.png)
Combining the like terms we get;
![3y-y=6+2\\\\2y =8](https://img.qammunity.org/2021/formulas/mathematics/high-school/1vx4jfa3vgfwmfz1mvbkt6m47p9akxywzc.png)
Dividing both side by 2 we get;
![(2y)/(2)=(8)/(2) \\\\y=4](https://img.qammunity.org/2021/formulas/mathematics/high-school/ubdcxnv424kjgvyz5cf2kroe6o1mjjsmdh.png)
Now AB =
![3y -2 =3* 4-2 =12-2 =10](https://img.qammunity.org/2021/formulas/mathematics/high-school/d1z7h4l3na1klho596mvrm6l3w39s0ps2g.png)
Also
BC = AD
Substituting the value we get;
![x+12=2x-4](https://img.qammunity.org/2021/formulas/mathematics/high-school/2uzk5q6zh8jfpzadpt4reoend68bfsexww.png)
Combining the like terms we get;
![2x-x=12+4\\\\x =16](https://img.qammunity.org/2021/formulas/mathematics/high-school/yldyhl0irc3g7vq8s4tdogv379ab7w6ni8.png)
Now BC =
![x+12 =16+12 =28](https://img.qammunity.org/2021/formulas/mathematics/high-school/wd9u8r17z08wolbw4zumeapzdlq2jj2e3f.png)
Hence AB = 10 and BC =28.