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choli [55]
3 years ago
12

ABCD is a rectangle.

Mathematics
2 answers:
Lena [83]3 years ago
7 0

Answer:

12,5, and 13

Step-by-step explanation:

i got it right on edge

Nikitich [7]3 years ago
5 0

Answer:

AB = 12    BC = 5   AC = 13

Step-by-step explanation:

opposite sides of a rectangle are congruent, therefore AB = DC = 12

and BC = AD = 5.

Now, AC is found by using the Pythagorean theorem.  

So, AC^{2} = AB^{2} + BC^{2}

            = 12^{2}+5^{2}

            = 144 + 25 = 169

AC = \sqrt{169} = 13

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