Find sin A

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What is the area of the triangle 10 13 12

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°