POLYGONS 1a) Find the sum of interior angels of an octagon b) Name the size of each exterior angle of an octagon. 2) A regular polygon has one of its interior angles 120 degrees. What is the name of the polygon? 3) A polygon has angles 70degrees , 2x degrees, 150degrees, 120 degrees and x+20degrees. Find the value of x. 4) How many lines of symmetry and order of rotational symmetry does the following shapes have: a) rhombus b) kite c) circle d) nonagon 5) Find the sum of exterior angles of a heptagon. 6) A polygon has one of its exterior angles 30degrees. a)What is the name if the polygon? b) Calculate the corresponding interior angle. 7) Show by drawing, the lines of symmetry of a square. PROBABILITY 1) What is the probability of Barcelona winning the game against Real Madrid in champions league game. 2) Two fair coins are tossed and the result is noted. What is the probability of getting a) at least one tail b) both heads 3) A bag contains 5 white balls and 4 blue balls. A ball is picked one after the other with replacement.Find the probability of picking a) a white ball on first pick b) a white and a blue ball c) both blue balls d) at least one white 4) Use question 4 to answer question 5 but without replacement. 5) Two dice are thrown at the same time. Find the probability that a) the product of the two numbers is a square number b) the sum of the two numbers is 9 c) the product of the two numbers is a multiple of 6 d) the two numbers are prime Questions for practice More? Yes❤️ No🙏