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90 degree, 45 degree, 10-20 degree, or 0 degree … choosing the best angle when photographing food can be overwhelming. What will make the dish look the most appetizing? How can all of the details of the recipe be shown? What angle will make people want to jump into the photo and enjoy a bite...Read the Post

Get key tips on how to lay out a fence for perfectly square corners, straight fence lines, and evenly spaced posts.

Learn your way around two of the most common right triangles in mathematic equations: 30-60-90 triangles and 45-45-90 degree triangles.

A perpendicular bisector is a line that cuts a line segment connecting two points exactly in half at a 90 degree angle. To find the perpendicular bisector of two points, all you need to do is find their midpoint and negative reciprocal,...

If you think sitting up straight is the answer to back pain, think again. It actually puts more stress on your back.

You must be a neuron.

This is a protractor, it helps us measure angles (in degrees): Have a look at this animation (press the play button) to see how to make a neat...

Nathaniel Behrents, DDS, MS, goes through an endodontic case study involving a diagnosis of irreversible pulpitis with long roots and greater than 90-degree curvature. He takes...