Question

What am I doing wrong?

Answer 1

you have used the wrong ratio... its not tan its sin

sin(53) = a/10

Answer 2

and in both cases the side you are finding must be shorter than the hypotenuse..

its a good checking tool.

Answer 3

\[\cos(53)=\frac{b}{10}\iff b=10\cos(53)\] you solved the proportion incorrectly

Answer 4

in the cos ratio... its correct to a point

cos(53) = b/10

so

10 * cos(53) = b

Answer 5

Would the answer be 6? @campbell_st

Answer 6

is that for a or b...?

Answer 7

B, sorry.

Answer 8

yes that's correct.