Combine Pythagorean Theorem & sin cos tan

CONCEPTS

Tips

• Pythagorean theorem and sohcahtoa can be used together to find a side, an angle, or sin/cos/tan.

PRACTICE PROBLEMS

Question 1 What is sin θ in the triangle?

-- Answer -- sin θ = 5/13

Question 2 Given sin A = 20/25, what is tan A?

-- Answer -- 20/15

25² = 20² + x², x = 15, tan A = 20/15

ACT PRACTICE PROBLEMS

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