14. Show that the triangle \( A B C \) is a right-triangle if \( A(1,3), B(3,-1) \) and \( C(-5,-5) \). 15. The vertices of a triangle are the points \( A(-2,3), B(5,-4) \) and \( C(1,8) \). Find the slope of each side.
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- For question 14: \( A(1,3), B(3,-1), C(-5,-5) \) - For question 15: \( A(-2,3), B(5,-4), C(1,8) \) ### Question 14: Show that the triangle \( ABC \) is a right triangle. Show more…
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