The value of the variable x will be 4. Then the correct option is B.
It is a polygon with four sides. The total interior angle is 360 degrees.
A quadrilateral with 90 degree angles.
If all the angles are right angle, then the quadrilateral should be either rectangle or square.
The lengths of the left and right sides are 10 and 2y + 4.
The lengths of the top and bottom sides are 18 and 10 + 2x.
If the adjacent side of the rectangle are same, then the rectangle will become square.
So, the quadrilateral is a rectangle.
Opposite sides of the rectangle are congruent.
Then the value of the variable x will be
10 + 2x = 18
2x = 18 – 10
2x = 8
x = 8 / 2
x = 4
The value of the variable x will be 4.
Then the correct option is B.
More about the quadrilateral link is given below.
https://brainly.com/question/13805601
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