Question

solve this question please...​

Answer 1

Answer:

OPTION 3 IS CORRECT

Step-by-step explanation:

$2x = x + 7 \\ \\ x = 7 \\ \\ therefore \: \: ab = x + 7 \\ \\ = 7 + 7 \\ \\ = 14 \: \: cm.$

Answer 2

Answer:

14 cm

Step-by-step explanation:

as the length of the opposite sides is equal

2x = x + 7

where

x = 7cm

and

x + 7 = 7 + 7 = 14 (length of side AB)