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

Approximate the length of the diagonal of the square or rectangle to the nearest tenth-example-1
User Marietta
by
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2 Answers

3 votes

Answer:

diagonal = √80 or 8.9

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

User Jaypal Sodha
by
8.5k points
2 votes
The answer is 8.9cm, hope I helped!
User Iliis
by
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