Question

question 8 (mandatory) (1 point)
determine x to the nearest tenth of a metre.
4.6 m
77°
6.3 m
a) 6.2 m
b) 7.5 m
c) 7.9 m
d) 6.9 m
question 9 (mandatory) (1 point) saved
determine the length of x, to the nearest tenth of a metre.

Explanation:

Step1: Use the Law of Cosines

The Law of Cosines formula is \(x^{2}=a^{2}+b^{2}-2ab\cos C\). Here \(a = 4.6\), \(b=6.3\), and \(C = 77^{\circ}\).

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Answer:

d) \(6.9\ m\)