To bland a radius with two straight lines meeting at any angle To find the centre of an arc which passes through a given point and blends with a given line To divide a polygon into a number of equal areasĨ The blending of lines end curves 60 To blend a radius with two straight lines at nght angles Rectangle equal in area to a given triangle Square equal in area to a given rectangle Square equal in area to a given triangle Triangle equal in area to a given polygon Circle which has the same area as two smaller circles added together To divide a triangle into three parts of equal area Linear reductions m size reduction of s construction of an altitude geometry

To touch another circle and two given lines To pass through two given points and touch a given circle To touch another given circle and a given line To touch another circle and two tangents of that circle To touch two given lines and pass through a given point To pass through two given points and touch a given line To pass through three given points Inscribed circle of a regular polygon Circumscribed circle of a regular polygon Escribed circle to a regular polygon To pass through a fixed point and touch a line at a given point To construct circles, given the following conditions: To construct the diameter, given the circumference To construct the circumference, given the diameter Exercises 3 26Ĥ The construction of circles to satisfy given conditions 29

True isometric projection, isometric scales. Reguler polygon, given the diagonal (within a circle)ģ Isometric projection 20 Conventionel isometric projection ( isometric drawing) circles and curves in isometric Reguter polygon, given tho length of side (three methods) Regular octagon, given the diameter (within e square) Similar triangles with different penmeter Construction of the following quadrilaterals: Square, given one side Square, given the diagonal Rectangle, given the diagonal end one side Parallelogram, given two sides and an angle Rhombus, given the diagonal and length of sides Trapezium, given the parallel sides, the perpendicular distance between them and one angleĬonstruction of the following polygons: Regular hexagon, given the length of side Regular hexagon, given the diameter Regular octagon, given the diagonal (within a circle)

given one of the sides Isosceles, given the perimeter and altitude Scalene, given base angles and altitude Scalene, given base, altitude end vertical angle Scalene, given penmeter and ratio of sides Scalene, given perimeter, altitude and vertical angle 1 Scale» 3 The representative fraction plain scales diagonal scales proportional scalesĢ The construction of geometric figures from given data 10Ĭonstruction of the following tnanglea: Equilateral.

Construction of an altitude geometry