Learn about the surface area and volume of prisms with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

The miniature fingerprint sensor has a holographic phasegrating glued to the base surface of a trapezoidal prism. Theprism operates on light which reflects internally from a finger-coverslipinterface, ...

The four-sided, trapezoidal prism-shaped grater has several advantages over the flat rasp style. It has more surface area and ...