Question

if cosA=12/13 the find sinA​

Answer 1

Answer:

Step-by-step explanation:

Using Pythagoras theorem

We can find the third side

x^2 + 12^2= 13^2

x^2 = 169-144 = 25

x=5

Therefore

SinA = 5/13

Answer 2

cos = base /hypotenuse

hence , base = 12

hypo = 13

perpendicular^2 = 13^2-12^2

= 169 -144

=25

perpendicular = 5

hence , SinA = 5/13