The observations in an Annotate data set use a set of predefined Annotate variables. The values of the variables in the observation determine what is done and how it is done. To create these ...

Area of Triangle Formula: In general, "area" refers to the region inside the boundary of a flat object or figure and is measured in square units, with the standard unit being square meters (m²). There ...

3D shapes can be made from 2D shapes called nets. Watch the video to learn how 3D shapes, such as a cube, can be created from nets, an arrangement of 2D shapes. Let's talk about nets. More ...