Answer:
The value of x = 9
Step-by-step explanation:
∵ The figure has right angle and a line ⊥ from the right angle to the hypotenuse
∴ There is a relation between the ⊥ line and the two parts of the hypotenuse
∴ (⊥)² = multiplication of the two parts of the hypotenuse
∴ (6)²= 4 × x
∴ 36 = 4 × x
∴ x = 36/4 = 9
The correct answer to this question is B. Hope this helps :)
It helps because it breaks apart the dividend to make it easy to divide with the divisor.
So because this quadrilateral's sides are the same, S, this means that this is a square. With that in mind, the area of a square is 
, with x = sides. Since we have the area, we can solve for the side as such:
In short, S = 1.3 km.
