Question

Enter the number that belongs in the green box

Answer 1

11.89

Explanation:

Given the two sides and the included angle, we can use the Law of Cosines to determine the missing side:

`c=√(a^2+b^2-2ab\cos\gamma)\\c=√(9^2+6^2-2(9)(6)\cos103^\circ)\\c\approx11.89`