0 30 15 45 One Decimeter 2 3 4 5 6 7 8 9 60 75 1.0 45 50 40 Data Sheet for Measuring Triangles 20 70 80 10 Length of sides in decimeters Angle Adjacent Opposite Hyp Exact Approx Approx. Cosine Sine Cosine Exact Sine Adj Opp Adj Opp Degree Radian Measure Measure Measure Hyp Hyp Hyp Hyp 9 10 15 XX XX 20 XX 30 40 XX 45 50 XX 60 70 XX 75 XX 80 XX 90 0221 OPEN l Village, Original Peoples Education Nawed, 50100) NGO Edual