Draw one square.
Join the midpoint of each side to the midpoint of the adjacent sides.
The resulting figure meets the requirements.
They are all polygons having their own particular properties
triangles
yes
A circles has no perpendicular lines. Perpendicular lines are two straight lines that join forming 90 degree angles. They are found in squares, rectangles, and right-angled triangles. A circle is made by one line that is not straight but is curved. If you drew a circle, rectangle, right-angled triangle, or cross in the circle, then the circle would contain perpendicular lines. But the circle itself would have no perpendicular lines.
4
Yes they have straight lines no curves and angles.
See the link under related links below that says "8 Lines 2 Squares 4 Triangles"
Squares do, triangles don't.
They are all polygons having their own particular properties
triangles
A square is a 2 dimensional shape, but it can be divided into 2 or more triangles, or more smaller squares, or hexagons and triangles, or octagons and triangles, or really any rectilinear figure and triangles. If you mean what two dimensional shapes can compromise the surface of a cube, or rectangular prism, then you want squares. if you mean what 1 dimensional figures can make the perimeter of a square, then you want lines (straight lines).
A polygon is any shape with three straight lines and three angles. Shapes such as squares, rectangles, triangles, and pentagons are the most common types of polygons.
3
Draw a rectangle in the ratio of 1:2 eg sides of 5cm & 10cm. Bisect both the longer sides and join their mid points with a straight line. Draw a diagonal. This gives you 2 squares, 2 big triangles and 2 small triangle (1 in each square)
6 straight lines drawn inside of an octagon will divide the octagon into 8 triangles
The intersection of two lines is a point. If both lines are straight the figure of four separate triangles are formed. The type of triangles are dependent on the angle of the intersection.
yes