Answer:
(8,9)
Step-by-step explanation:
Given



Required
Determine the 4th point
The coordinate point of a horizontal or a vertical rectangle is given as:
(x1,y1), (x2,y2), (x3,y3), (x4,y4)
Where:

So, we have:
--- 
---- 
---- 
Using the above equations:


Hence, the coordinate of the 4th point is:

Answer:
c subtract 5 from both sides
The answer is true. An altitude of a triangle is the perpendicular segment from a vertex to the line containing the opposite side.
Answer: i think the answer would be c
i hope this helps you out!
Step-by-step explanation: