Question

Find the value of cos C rounded to the nearest hundredth, if necessary

Answer 1

$\bold{\frac{5}{13} or 0.38}$

Answer:

Solution given:

here

by using Pythagoras law

hypotenuse =

$\displaystyle\sqrt{adjacent ²+opposite ²}\\=\sqrt{15²+36²}=39$

Cos C=$\frac{adjacent} {hypotenuse}=\frac{15}{39}=\frac{5}{13} or{0.38}$