Answer:
27 cm
Step-by-step explanation:
This is a right triangle so we can use trig functions.
sin theta = opposite/ hypotenuse
sin 39 = a/28
Multiply each side by 28
28 sin 39 = a
26.98627082
Rounding
a = 27
The exact answer is 26.986270816
Sin(39) * 28 = 26.986270816
