I believe its the third line correct me if im worng
Answer: 1820
Step-by-step explanation:
The first can be selected in 16 ways, the second in 15 ways, the third in 14 ways and the last in 13 ways
i.e. 16 x 15 x 14 x 13 => 43680
However, the order of the candidates does not matter and they can be selected in 4 x 3 x 2 x 1 => 24 ways
so, 43680/24 => 1820
270, 360 | 2
135, 180 | 3
45, 60 | 3
15, 20 | 5
3, 4
2 * 3 * 3 * 5 = 90
The greatest common factor of 270 and 360 is 90.
Use the trigonometry triangles SOH CAH TOA
Sin= opposite/hypotenuse
Opposite= opposite the angle
Hypotenuse is the longest side