Answer:
Option C is the correct option.
Step-by-step explanation:
Considering the triangle ABC, the slope of the line CA is given by 
Again, considering the triangle CDE, the slope of the line EC is given by

Since CA and EC represents the same straight line so, we can write

Therefore, option C is the correct option. (Answer)
Add 145, 156, 210. and 255 then divide by 4. The mean equals 184.
Since the area of a square is equal to the square of one of its side's length, then the area should be equivalent to

.

---> equation (1)
By using pythagoras rule which states that the

---> equation (2)
where the opposite side's length is 8 and the hypotenuse side's length is 10
by substituting by the values in equation (2) therefore,

substitute this value in equation (1) then

where A is the area of the square whose side is x
10 is your answer because it is a terminating or repeating decimals
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