Question

I NEVER LEARNT THIS BEFORE BUT I AM GOING TO GET A DETENTION IF I DON'T DO IT

Answer 1

On side of the square is 20 cm.

Explanation:

6x-1=4x+6

2x-1=6

2x=7

x=3.5

6(3.5)-1

21-1

Side 1 = 20

4(3.5)+6

14+6

Side 2 = 20