Jeffancheta63viz
Answered

5. Quadrilateral ABCD is a parallelogram.
If AB = 2x – 10 and CD = x + 30,
then AB = ______ .

A. 50
B. 60
C. 70
D. 80​

Sagot :

Zaine16viz

AB= CD

  • 2x-10=x+30
  • 2x-x= 30+10
  • x= 40

AB

  • 2x-10
  • 2(40)-10
  • 80-10
  • =70

Answer is C. 70

Correct me if I'm wrong:)