We can use Pythagorean theorem for right angle triangle to solve this problem.
The diagonal line would be hypothenuze. Horizontal and vertical distance would be other two sides of a triangle.
We will use the following formulas:

Where opposite side is vertical distance and adjacent side is horizontal distance.
Solving for these two sides we have:

We insert numbers and we get solution:
Answer:
(8-5)*(6+7+(8-6)+(7-5))
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
The answer is letter choice A.
2
Every one of the answers is correct except 3.4