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wel
3 years ago
13

Find the length of the diagonal of a rectangle. Round your answer to nearest tenth.

Mathematics
1 answer:
Marina86 [1]3 years ago
3 0

Answer:

19.2m

Step-by-step explanation:

"Slice" the rectangle into two right triangles (slice along the diagonal). Now you can use the Pythagorean theorem to calculate the length of the diagonal:

a^{2} +b^{2} =c^{2} \\12^{2}+15^{2} =c^{2} \\144+225=c^{2} \\\sqrt{369} =\sqrt{c^{2} }\\19.2m =c

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