Question

help please

A rectangle has sides of length 5 and 8. What is the length of the rectangle's diagonal? Express in radical form.

Answer 1

Pythagorean theorem:

a^2 + b^2 = c^2

a, b are sides of the triangle
c is the hypotenuse

The diagonal bisects the rectangle and is therefore the longest side of the resultant triangle. Thus, you put in:

5^2 + 8^2 = c^2

25 + 64 = c^2

c^2 = 89

c = 9.44

Answer 2

thank you!:)

Answer 3

Happy to help.

Answer 4

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