Geometry
posted by Kayla
1. Find the length of a diagonal of a rectangle ABCD with vertices, A (3,1), B(1,3), C(3,1) and D (1,3).
A) 5.7
B) 6.3
C) 3.2 *
D) 4.5

Reiny
Kayla, you were given the exact answer of 2√10 by "cyliner",
which is 6.3245553...
which correct to 1 decimals would be 6.3
so .....
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