One pair of parallel sides are et different lengths vi Kite and V Shaped Kite Remember A square is also a rectangle as it has opposite sides squal A parallelogram has 2 thombus are special type en parallelogram A 2 pairs of adjacent equal sides Triangle Properties of Kite A Diagonals of a kite are perpendicular to each other One of the diagonals divides the kite into two modes A kite may or ay not be a parallelogram The sum of internal angles of a quadrilaterali 360 A square ra rectangle can be divided into two right angled triangles of equal sine by joining any two opposite vertices diagonally Opposite angles of a parallelogram are equal 3 Polygons A closed plane figure having more than 2 sides is a polygon in regular polygons all sides and all angles are equal Diagonals of a regular polygon are pal All polygons are classified according to the number of their sides Quadrilateral 4 ofequial and parallel sides so all rectangles guares and Dwap 30 In your day to day life you can see different types of polygon all around you In nature bectives are the best examples of hesagons A design of pentagon can be seen in football and hout Stop sight and wall clocks have wight sides so they are regalar tagms An opmed umbrella and star s a symbol of decagon STOP If a polygon has all tissides equal it called a regular polygos A regular polygim has all angles angles in it Let s Practice 1 Select any there objects having a flat tops Measure all sides of the sip using a divider and a ruler 2 What is the angle mame for half a relution What is the angle name for one fourth revolution 4 Draw five other situations of one fourth half and the fourth revolution on a clock The hour hand of a clock moves from 12 to 5 is the revolution of the hour hand more than one right angle What does the angle made by the hour hand of the clock look like when it moves from 577 is the angle mereed more than 1 night angle 7 Draw the following and check the angle with your RA tester 00 going from 12 to 2 from 6107 v trum 21052 from 4 to 8 List five situations where the angles made are 1 acute i obtuse angles are made 0 right angles v refles angles may be seen