This image appears to contain a set of mathematical problems in Indonesian. Here's a breakdown of the questions:

1. Diketahui tan θ = 3/4, tentukan: a. sin θ
   b. cos θ
   c. sec θ
   d. csc θ
   e. cot θ

2. Tentukan nilai dari: a. sin 60°
   b. cos 60°
   c. tan 60°
   d. sin 225°

3. Tentukan koordinat kartesian dan kutub: a. (5, 5)
   b. (5, 5)

4. Carilah luas Δ ABC dari sisi a = 4 cm, b = 6 cm, c = 8 cm

5. Diketahui Δ ABC, sisi a = 30 cm, c = 50 cm, dan ∠CB = 60°; tentukan luas!

Would you like help solving any of these problems in detail? Feel free to let me know which question you'd like to start with!