A polygon is a plane figure connected by straight lines to form a closed shape, examples are triangle, square, hexagon, octagon e.t.c.
A prism is a solid figure that has two parallel and congruent faces (called the bases of the prism). The cross section of a prism parallel to the bases are the same shape as the bases. Prisms are being named according to the shape of the base polygon.
draw perpendicular from the center of the circle to produce a right angle triangle which will have 3cm and an angle of 30 degrees. use tan to find the adjacent line which is the length of the tangent.
