Posted by Richard D on Friday, October 19, 2012 at 11:40am.
Find the area of a rectangle if three of its corners are (3.7, 3.1), (1.2, 3.1), and (1.2, 5.3). Hint: find the 4th corner first.

College Math  Reiny, Friday, October 19, 2012 at 12:03pm
I made a rough sketch, and I bet the missing point is
(3.7 , 5.3)
length = 1.2  (3.7) = 4.9
width = ...
area = length x width
= ...

College Math  Richard D, Friday, October 19, 2012 at 12:39pm
How do you solve for the length you don't have to slove it but what would the formula be ?...

College Math  Steve, Friday, October 19, 2012 at 2:39pm
hard to believe your class materials don't include the formula for finding the distance between two points. Think Pythagorean Theorem.
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