Geometric figures can be drawn using a compass and a straight edge. This is commonly known as ruler and compass construction.
circle
I am not aware of any "geometric figure 8" - before finding the area of such a figure, you have to determine clearly how exactly it is defined. For example, you can draw two exact circles, or two ellipses - but that's not always exactly how it is drawn.
prism
An isosceles triangle has 3 sides and 2 of its sides are of equal length which can be constructed by using a straight edge and a compass.
Geometric figures can be drawn using a compass and a straight edge. This is commonly known as ruler and compass construction.
circle
Circle in 2D is a straight figure drawn on a plane. But if we take it as a sphere,it cannot be straight.
that it could be drawn using just a compass and straight edge
I am not aware of any "geometric figure 8" - before finding the area of such a figure, you have to determine clearly how exactly it is defined. For example, you can draw two exact circles, or two ellipses - but that's not always exactly how it is drawn.
If the compass angle is changed, the entire geometric shape being drawn is different. For example, if a triangle is being drawn, it could change from an obtuse triangle from a ninety degree triangle.
prism
A compass.
A ten-sided geometric figure could have ten triangles drawn inside it, if you connect the vertexes. 8 triangles
An isosceles triangle has 3 sides and 2 of its sides are of equal length which can be constructed by using a straight edge and a compass.
circles
Geometric boundaries