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8.05 Solving for angles in right triangles

Interactive practice questions

If $\cos\theta=0.146$cosθ=0.146, find $\theta$θ, writing your answer to the nearest degree.

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Approx 2 minutes
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If $\tan\theta=0.21$tanθ=0.21, find $\theta$θ, writing your answer to the nearest degree.

If $\sin\theta=0.825$sinθ=0.825, find $\theta$θ, writing your answer to the nearest degree.

If $\tan\theta=0.575$tanθ=0.575, find $\theta$θ, writing your answer to the nearest degree.

Outcomes

GEO-G.SRT.7

Explain and use the relationship between the sine and cosine of complementary angles.

GEO-G.SRT.8

Use sine, cosine, tangent, the Pythagorean Theorem and properties of special right triangles to solve right triangles in applied problems. ★

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