# Find the angle calculator of a triangle

##### Finding an Angle in a Right Angled Triangle

A trigonometric ratio is a ratio of two sides of a right triangle. We can use trigonometric ratios to relate the angles of a triangle to the lengths of the triangle’s sides. ... ExamplesUsing your calculator, find the value of each to the nearest ten-thousandth: ... Practice Find each angle measure to the nearest degree.

##### [DOC File]Trigonometry

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Q: Find the tangent scale factor for the angle of . 12 0 A: tan 12 =0.21 Q: Find the angle which has a cosine scale factor of . 0.82 A: arccos 0.82 = 34.9 0 We don’t write it . sin -1 because that could be confused with 1 sin . Your calculator is unfortunately designed by a careless mathematician / there isn’t enough space to write arcsin!

##### [DOCX File]Finding Values on the Calculator - White Plains Middle School

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Simplify. You may use a handheld calculator (in degrees mode) to calculate.In this case, an approximate value for the tangent of 38 degrees is 0.78129: Step 9: Check for reasonableness: In this case, the acute angle was 38°, which is. less than 45°. (If it had been a 45° angle, both legs would be congruent.) It is

##### [DOC File]Right Triangles and SOHCAHTOA: Finding the Length of a Side

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Example 2 (p 366): Use a Calculator to Evaluate Expressions. Find each value to the nearest ten thousandth. BE SURE CALCULATOR IS IN DEGREE MODE!! tan 56(cos 89( If you know the measures of two sides of a right triangle or the measure of one side and one acute angle of a right triangle, you can use a trig ratio to find all of the pieces of the ...

##### [DOC File]Trig Tutorial

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10. Write and solve an equation to find the missing angle measures. Find the missing angle measure using any method. 20. What is the measure of an angle, if three is subtracted from twice the supplement and the result is 297 degrees? 21. Construct an angle that measures 25 degrees. Label it …

##### [DOC File]Worksheet 9A- part 2

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Example: Find the exact values of the six trigonometric functions of the angle θ given in the figure. Example: Sketch a right triangle corresponding to the trigonometric function of the acute angle θ. Find the other five trig functions of θ. Example: Use a calculator to evaluate each function. Round your answers to four decimal places.

##### [DOC File]Finding Missing Angles Worksheet

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For each problem, draw a picture/diagram showing the right triangle. Then write a trig ratio equation, and solve the equation to answer the problem. * The angle between the HORIZONTAL and a line of sight is called an angle of elevation or an angle of depression (see …

##### [DOC File]Special Right Triangles Worksheet # 2

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Students must know the classifications of a triangle by angle; acute, obtuse, and right. Students must be familiar with the terms: perpendicular, bisector and midpoint. Students need to know and apply the Pythagorean Theorem. Students need to know how to simplify radicals. Materials Needed: TI-Nspire calculator. Pencil. Straight-edge. Worksheet

##### [DOCX File]Angles Angles round a point, on a straight line, in a ...

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Your calculator can give you the answer to any trigonometric ratio you want. Say we want to find how long side ‘a’ is. What we can do is write a trigonometric ratio which has ‘a’ in it. To do this, we’re going to have to pick one of the angles (apart from the right angle) in the triangle. Let’s pick the 40° angle.

##### [DOC File]Angles, Arc, and Measure

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17. The length of the diagonal of a square is 18 mm. Find the perimeter of the square. 18. The diagonal of a rectangle is 12 in and intersect at an angle to make a 60° angle. Find the perimeter of the rectangle. Geometric Mean . 19. 20. Find x 21. Find x. 22. Find x 23. 24. 45˚ 8 45˚

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