Question

ina triangle abc right angle at b if base line is ab is 12 and bc is 5,then determine cos c​

Answer 1

Answer:

5/13

Step-by-step explanation:

AB=12

BC=5

AC by Pythagoras theorem

AC2=(12)2+(5)2

AC2=144+25

ac=13cm

cosC=BC/AC

=5/13