I'm thinking of an acute angle measured in degrees. The tangent of the angle is bigger than the cosine of the angle which in turn is bigger than the sine of the angle.
Without calculator guess what angle I might be thinking of.
With a calculator find a more precise answer to the question above.
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Szilvia Varro-Gyapay, Montreal
Friday, September 4, 2020
"Thank you for the great question! I solved the question using partly algebra first:
Because x is an acute angle and sin x < cos x, 0
I took a look at the solution only after that. So maybe you could add the algebraic way as a second way to solve the question, too."
How did you use this resource? Can you suggest how teachers could present, adapt or develop it? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world. Click here to enter your comments.
