A parallelogram has side lengths of 13 and 17 and an angle that measures 64º.
What is x, the length of the diagonal, to the nearest
whole number?

Step-by-step explanation:

x = length of diagonal, can be calculated using the Law of Cosines as explained below:

a² = b² + c² - 2bc(cosA),

Where,

a = x

b = 17

c = 13

A = 64°

Plug in the values into the formula:

Length of diagonal, (to nearest whole number)

the correct answer to your question is a. 4^4

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