Topics
Trigonometry
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New Zealand
Level 6 - NCEA Level 1

Finding Unknown Angles

Lesson
Practice

Interactive practice questions

Find the value of $x$x to the nearest degree.

 

A right-angled triangle with vertices labeled A, B, and C. The right angle is at vertex A located at the bottom left. An angle marked as 'x' is located at vertex B. Adjacent to the angle labeled as x is side AB with the length of 5 units. Opposite to the angle labeled as x is side AC with the length of 12 units. Side BC is the hypotenuse and is not labeled with a length. 
Easy
1min

Use the tangent ratio to find the size of the angle marked $x$x, correct to the nearest degree.

Easy
1min

Find the value of $x$x to the nearest degree.

Easy
1min

Find the value of $x$x to the nearest degree.

Easy
1min
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Outcomes

GM6-6

Use trigonometric ratios and Pythagoras’ theorem in two and three dimensions

91031

Apply geometric reasoning in solving problems

91032

Apply right-angled triangles in solving measurement problems

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