Trig Definitions Practice

1) For each of these triangles, write the ratios indicated:

2) Name the angle indicated by these inverse trig ratios:

a) Arcsin a/ b = angle __ ? b) Arccos c/ b = angle __ ? c) Arctan a/ c = angle __ ?

d) Arcsin c/ b = angle __ ? e) Arccos a/ b = angle __ ? f) Arctan c/ a = angle __ ?

3) Use a trig function to find the missing side of the triangle:

4) Use an inverse trig function to find Angle A, then find angle C by subtraction:

Solutions:

1) For each of these triangles, write the ratios indicated:

2) Name the angle indicated by these inverse trig ratios:

a) Arcsin a/ b = angle A ? b) Arccos c/ b = angle A ? c) Arctan a/ c = angle A ?

d) Arcsin c/ b = angle C ? e) Arccos a/ b = angle C ? f) Arctan c/ a = angle C ?

3) Use a trig function to find the missing side of the triangle:

4) Use an inverse trig function to find Angle A, then find angle C by subtraction:

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