Hence the name. In other words, a number is rational if we can write it as a fraction where the numerator and denominator are both integers.
First draw out the picture it will help. Then you can see that you want the opposite segment of the angle, which leads you to use a sine. So you have 20sin30 or 20(1/2) or 10ft.
Answer:
2 Right Angled Triangles
Step-by-step explanation: