Shapes with 3 sides Explore shapes with 3 sides and look at curved and straight lines. Shapes with 4 sides Explore four-sided shapes looking at straight lines, curved lines and 2D shapes.

Two lines have equations \(y = {m_1}x + 3\) and \(y = {m_2}x - 7\). If the lines are parallel then \({m_1} = {m_2}\) and if \({m_1} = {m_2}\) then the lines are ...

On the Home tab, choose the line shape in the Shape gallery, then draw the line horizontally on the grid. Press Ctrl D to copy the line and place it vertically at the bottom of the previous line ...

The landscape changes as lines take shape to form simple geometric designs: trapezoids, straight lines, rectangles, triangles, and swirls. Some of the swirls and zigzags start to form more ...