Question

In △ABC,a=5,b=12,c=13, how do you find the cosine of each of the angles?

Answer 1

in ∆ ABC
a:15
b:15
c:13
15+22+13
: 50

Answer 2

hey mate.....

here is your answer

in angle ABC

a=5

b=12

c=13

5+12+13=30