Flash Cards: Playing with Constructions

A compass is a tool used to draw arcs and circles by keeping one point fixed and rotating the pencil around it.

A circle is a shape consisting of all points that are a fixed distance from a center point, called the radius.

Fix the compass at the center, set the desired radius, and rotate the compass to draw the circle.

A rectangle has opposite sides equal in length and all angles measuring 90 degrees.

In a square, all sides are equal in length, and all angles measure 90 degrees.

A rectangle can be named using its corners in the order of travel; examples include ABCD or DCBA.

No, rotating a square does not change its side lengths or angle measures; it remains a square.

Using a compass or ruler, construct four equal sides, each measuring 6 cm, and ensuring all angles are 90 degrees.

Equidistant means being at the same distance from two or more points.

Identify corners and use a compass to ensure walls are equal lengths; construct the outline using straight lines.

The diagonals are line segments connecting opposite corners of the rectangle.

X and Y are closest when they are aligned vertically or horizontally along the rectangle's sides.

A ruler provides straight edges while a compass draws arcs and circles, ensuring precise constructions.

A common mistake is not keeping the compass point fixed while rotating, leading to inaccurate circles.

The order of drawing affects the accuracy; always start with the base shape and build upon it.

Use the radius in the compass, set it at the center, and draw only a semi-circle arc.

Commonly used units include centimeters (cm) and meters (m) for measuring lengths.

A rectangle cannot have all sides equal; if so, it becomes a square.

Shapes such as triangles, rectangles, and squares can be drawn using straight lines.