It's a right triangle as it has the 90 degree corner and 3 different lengths
Answer:

Step-by-step explanation:
Given:


The attachment completes the question
From the attachment, the slope of the line was calculated as:

This step is inaccurate because the slope of a line is calculated using

Which gives



The line equation is then calculated using:

Substitute values for m, x1 and y1


Open bracket

Make y the subject

Suggest or assume the existence, fact, or truth of something as a basis for reasoning, discussion, or belief.
All you have to do is find the relationships between the top and bottom and then find how they all r in common