Trigonometry

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Given Triangle ABC: Right Triangles

1. If a = 6 and <B = 53º, find b, c, and <A
2. If c = 13 and b = 12, find a, <A, and <B
3. If <A = 20º and b = 10, find <B, a and c
4. If c = 30 and <A = 40º, find <B, a

  • Trigonometry -

    These are right triangles, so angle C is 90

    1. isnt CosineB=a/c so you can solve for c. Then, solve for b.

    I will be happy to critique your thinking.

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