Geometry for Young BeginnersCUP Archive |
Contents
SECTION | 1 |
The construction of triangles i given two sides and | 7 |
To construct i the circumscribed circle of a triangle | 67 |
Additional exercises | 75 |
Properties of squares Construction of a square Pro | 86 |
To construct a hexagon an octagon and a pentagon | 92 |
To find the area of a square and of an oblong | 101 |
Some arithmetical examples | 119 |
To prove that the area of a trapezium is equal to | 125 |
To find the ratio between the circumferences of circles | 132 |
Common terms and phrases
ABCD acute angles adjacent angles angle BAD angle equal angle is called angle of 60 angles are equal angles marked angular points bisecting the angle bisectors bisects the base centimetres chord circumference contain an angle describe a circle diagonals bisect diameter divide draw a circle draw a line draw a perpendicular Draw a triangle Draw the following Draw two lines equal angles equilateral triangle EXERCISES figure find the centre given angle given side hexagon hypothenuse isosceles triangle Join AC join the points length line drawn line joining line which bisects middle point oblong obtuse angles octagon opposite angles opposite sides parallel lines parallelogram pentagon protractor quadrilateral regular polygon rhombus right angles right-angled triangle SECTION segment set squares shew shewn Sides 21 sides are equal sides equal square inches straight edge straight line tangents tracing paper trapezium triangle ABC vertex vertical angle