Question

In right triangle ABC, when angles A and B add up to 90 degrees, what is the cosine of B equal to?

Answer 1

tje total angel in a triangle is 180

Answer 2

so, probable 90 degree

Answer 3

oh what sinB right?

Answer 4

sin B
c.
sin A
b.
tan A
d.
cos A

Answer 5

cosB=sinA since they might be both 45, 45 degrees

Answer 6

oh

Answer 7

thank you

Answer 8

i wish i have a drawing . it would be better