what is the value of X

Answer:
x = 7 units
Step-by-step explanation:
The area of the trapezoid is
A = 1/2 (b1+b2) *h
where b1 and b2 are the top and bottom and h is the height
Substituting what we know
98 =1/2 (20 +8) *x
Combine like terms
98 = 1/2 (28)x
98 = 14x
Divide by 14 on each side
98/14 = 14x/14
7 =x
Answer:
Option D is correct answer.
Step-by-step explanation:
For the area of Trapezoid we apply The formula
[tex]\frac{1}{2}[/tex] sum of parallel sides X distance between them
Here in the question we have area = 98 square units
parallel sides are 20 units and 8 units ,Plugging them in the above formula
Let d be the distance between them
98=[tex]\frac{1}{2}[/tex] [ 8+20] X d
98=14 X d
d= [tex]\frac{98}{14}[/tex]
d = 7 units