Answer:
4.69
Step-by-step explanation:
sin = opposite/hypotenuse
sin 23 = a/12
To solve for a, multiply both side by 12, so a is by itself.
12 · sin23 = a/12 · 12
12 · sin23 = a
use your calculator to find the sin of 23, which is approximately 0.390731128
Multiply by 12
0.390731128 * 12 = 4.688
