A(1,3), B(5,7), C(4,8), D(a,b) form a rectangle ABCD. Find a and b.
Added by Ismael A.
Step 1
Since A and C are opposite vertices of the rectangle, the midpoint of AC will also be the midpoint of BD. Midpoint of AC = $\left(\frac{1+4}{2}, \frac{3+8}{2}\right) = \left(\frac{5}{2}, \frac{11}{2}\right)$ Show more…
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