if you have a graphing calculator you can use the inverse of Sin( and enter the number of the sides EX. push second then Sin then enter the long leg number divided by the hypotenuse and then push enter (note. this only works on right triangles)
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Use Pythagoras' theorem if you know any two lengths of the triangle
It is the angle opposite the hypotenuse which measures 90 degrees
Divide the shorter leg by the longer, then look it up on the tangent table in any trigonometry text. This will give you the size of the smallest angle.
Depending on which sides and angle are known you would use one of the trigonometry functions.
By using trigonometry that is applicable to a right angle triangle.
To find side lengths on a triangle, you need to know at least one of the sides. The possible combinations for solving* a triangle are: side, side, side; side, angle, side; angle, side, angle; angle, side, longer side. *To solve a triangle is to find the lengths of all the sides and the measures of all the angles.
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The height of a triangle alone is not enough information to find the perimeter. You need some angle measures or side lengths.
Use Pythagoras' theorem if you know any two lengths of the triangle
To find the side lengths and hypotenuse of a right angle triangle.
It is the angle opposite the hypotenuse which measures 90 degrees
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Divide the shorter leg by the longer, then look it up on the tangent table in any trigonometry text. This will give you the size of the smallest angle.
80 degrees.
Depending on which sides and angle are known you would use one of the trigonometry functions.
If you know the lengths of two sides then use Pythagoras' theorem to find the third side.