1 Answer

Henhuy · Answer 1 · 2023-06-26T15:50:53+0000

To solve number 14, we will make use of the Law of Cosines, which states that:

$=\sqrt[]{^2+^2^{}-2\cos}$

As in our problem b = 15, c = 13 and A = 95°,we can replace these values in the formula and solve for a:

$=\sqrt[]{15^2+13^2-2\cdot(15\cdot13)\cos 95}$
$=\sqrt[]{15^2+13^2-390\cos 95}$
$a\approx20.69$

In our case, a is the segment BC.

Answer: 20.7

Please log in or register to add a comment.