The length of AD of the given quadrilateral is:
AD = 4.6 cm
What is the length of the Quadrilateral?
Using trigonometric ratios, we can see that:
3/AC = cos 35
AC = 3/cos 35
AC = 3.66 cm
Using law of cosines, we have:
AD² = 5² + 3.66² - 2(5 * 3.66) * cos 61
AD² = 20.797
AD = √20.797
AD = 4.6 cm