Year 9 Maths
Pythagoras Theorem and Trigonometry
Finding an Angle
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Questions
Question 1
205253
In a right-angled triangle the side adjacent to \(\theta\) is \(9\) cm and the hypotenuse is \(15\) cm. Which calculation gives \(\theta\)?
\(\sin^{-1}\left(\dfrac{9}{15}\right)\)
\(\tan^{-1}\left(\dfrac{9}{15}\right)\)
\(\cos^{-1}\left(\dfrac{9}{15}\right)\)
\(\cos^{-1}\left(\dfrac{15}{9}\right)\)
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