Question

Pls answer as soon as possible

Answer 1

Answer:

The answer is 16.

Step-by-step explanation:

Since, square has all sides equal

∴ 18x – 20 = 42 – 13x

⇒ 18x + 13x = 42 + 20

⇒ 31x= 62

⇒ x = 62/31 = 2

∴ Side of square = 18 × 2 – 20

= 36 – 20

= 16

Thus, length of the side of the square is 16 units.

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Answer 2

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Answer:

(a) 16

Step-by-step explanation:

As all sides of a Square are EQUAL,

18x-20 = 42-13x

18x+13x = 42+20

31x = 62

x = 62/31

x = 2

Therefore, side of the square

= 18x-20

= 18(2)-20

= 36-20

= 16