An acute angle is less than 90°. It might look small and sharp, like the corner in a slice of pizza. An obtuse angle is between 90° and 180°. It’s wider than a right angle but not a straight ...

A triangle is a polygon. It is a closed 3-sided shape made up of straight lines. The ‘tri-’ part of the word triangle means three. A triangle has 3 sides and 3 angles. Interior angles are the ...

Trigonometric ratios are used to find the unknown side or angle of a right-angled triangle. There are three different trigonometric ratios, \(\sin(\theta), \cos(\theta)\), and \(\tan (\theta)\). Each ...

Trigonometry is often aligned with right-angled triangles only. However, an understanding of trigonometry can also be extended to non-right angle triangles to find unknown sides or angles. The Sine ...

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This includes the Key Gas, Dornenburg Ratio, Rogers Ratio, IEC Basic Gas Ratio, Duval Triangle, and CIGRE ratio methods. The majority of these methods are ratio-based, meaning they use a subset of the ...

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# User has to enter the angles of the triangle in degrees.