Question

Pls refer to the pic

Answer 1

Answer:

(a) 16

Step-by-step explanation:

It is given that one side of a square is represented as 18x-20 and its adjacent side is represented as 42-13x.

We know that all sides of a square are equal. So,

18x-20 = 42-13x

18x + 13x = 42 + 20

31x = 62

x = 2

After substituting the value of x,

18(2) - 20 = 36 - 20

                 = 16

42 - 13(2) = 42 -  26

                = 16

Therefore, the length of the side of the square is 16.

Answer 2

Answer:

x = 2 cm or m and each side = 18x - 20 = 18 × 2 - 20 = 36 - 20 = 16 m or cm

Step-by-step explanation:

A/Q,

18x - 20 = 42 - 13x

=> 18x + 13x = 42 + 20

⇒ 31x = 62

=> x = 62/31 = 2 m or cm

So, rest is above in the answer part.