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serious [3.7K]
2 years ago
11

Approximate the length of the diagonal of the square or rectangle to the nearest tenth.

Mathematics
2 answers:
balu736 [363]2 years ago
8 0
The answer is 8.9cm, hope I helped!
olya-2409 [2.1K]2 years ago
7 0

Answer:

diagonal = √80 or 8.9

Step-by-step explanation:

Let's use pythagorean theorem here. Draw a diagonal separating the rectangle. We know that all the angles of a rectangle are 90 degrees. Therefore, we'll have a 90 degree triangle and we can use the pythagorean theorem.

4^2 + 8^2 = diagonal^2

16+64 = diagonal^2

80 = \sqrt{diagonal

diagonal = √80 or 8.944

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