Public domain photos

The image shows a black and white drawing of a diagram of a triangle with a right angle and a left angle, along with some text written on it. The diagram appears to be a trigonometric equation, which is a mathematical equation used to calculate the angle of a given triangle.

The image shows a black and white drawing of a diagram of a triangle with a right angle and a left angle, along with some text written on it. The diagram appears to be a trigonometric equation, which is a mathematical equation used to calculate the angle of a given triangle.Open in library