8.1.3 Solving Right Triangles - Practice
1. Use your calculator to find sin − 1 (0.48) to the nearest degree.
2. Use your calculator to find cos − 1 (0.81) to the nearest degree.
3. Use your calculator to find tan − 1 (5) to the nearest degree.
4. Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
5. Find the unknown measures. Round lengths to the nearest hundredth and angle measures to the nearest degree.
6. The coordinates of the vertices of △ MER are M (3, 2), E (3, − 3), and R (9, − 3). Find the side lengths to the nearest hundredth and the angle measures to the nearest degree.
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