Tolong jawab plis butuh bangett​

Jawaban:

1. E

2. A

3. D

4. B

5. C

Penjelasan dengan langkah-langkah:

1. sin 30° = x/15

x = 15 * sin 30° = 15/2 = 7,5 (E)

2. sin 18° = x/3,6

x = 3,6 * sin 18° = (9/10) * (√5 – 1) = 1,11 (A)

3. cos 36° = y/48

y = 48 * cos 36° = 48 * (√5 + 1)/4 = 12 * (√5 + 1) = 38,8 (D)

4. tan 24° = 47/x

x = 47/tan 24° = 47/0,445 = 105,6 (B)

5. cos 67° = 15/x

x = 15/cos 67° = 38,4 (C)