SOLUTION: AB the hypothenuse of a right-angled triangle. A is the point (3, 1) and B is the point (7, 9). Find the length of AB

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Question 990101: AB the hypothenuse of a right-angled triangle.
A is the point (3, 1) and B is the point (7, 9). Find the length of AB
Answer by Timnewman(323) About Me  (Show Source):
You can put this solution on YOUR website!
Hi dear,
The lenght of AB is given by
AB=sqrt%28%28x%5B2%5D%5E2-x%5B1%5D%5E2%29%2B%28y%5B2%5D%5E2-y%5B1%5D%5E2%29%29
From your question,
x2=7
x1=3
y2=9
y1=1
put the above in the formula,and get the lenght of
AB as 8.9
Hope this helps?
GOOD LUCK!