# What Is the Difference between Concave and Convex?

The difference between convex and concave is that convex refers to a curvature that extends outwards while concave refers to a curvature that extends inwards. Both concave and convex are terms that are used to describe mirrors, eye contact lenses and polygons that are used to give different visual impacts. They are commonly used to create appealing visual impacts used in amusement parks and recreation centres.
Q&A Related to "What Is the Difference between Concave and Convex"
 They have different curvatures, one curves in and the other curves out. http://wiki.answers.com/Q/How_are_convex_and_conca...
 Both convex and concave mirrors are essentially bent mirrors similar to the curve of a ball. Concave mirrors are bent inward as if you are looking at the inside of a ball. Convex http://www.ehow.com/facts_5872253_difference-conve...
 Convex is defined as curving or bulging outward while Concave curves inward. http://www.chacha.com/question/what-is-the-differe...
 Concave is inward curving, like the hollow in a cave. Embed Quote http://www.quora.com/Physics/What-is-a-good-mnemon...