Answer:
a = (d -c)/b
Step-by-step explanation:
Undo the addition of c, by subtracting c.
ab +c -c = d -c
ab = d - c
Undo the multiplication by b, by dividing by b.
ab/b = (d -c)/b
a = (d -c)/b
Given:

To find:
The value of x.
Solution:
We have,

We know that the corresponding sides of similar triangles are proportional. So,




Using distributive property, we get




Divide both sides by 6.


Therefore, the correct option is A.
Equation = a² + b² = c²
a = 80
b = 39
c = Diagonal
a² + b² = c²
80² + 39² = c²
6400 + 1521 = c²
c² = 7921
c = √7921
c = 89
Answer = 89 units
You subtract the intial from the final. your answer is0.94grams