author: steve lomax

... regular nonagon, divided into congruent triangles. Find the angles marked x and y. b Use the value of y to check your answers in question 4 for a regular nonagon. 10 Calculate angle y. 3 121 3y 110 3x 2y 156 95 2x 149 y 50 4 Copy and ...

... Regular polygon Triangle 3 Quadrilateral Pentagon Hexagon Heptagon Octagon 4 5 6 7 8 9 Nonagon Decagon 10 4 Two of the angles of a hexagon are right angles and three angles are equal to 132°. Find the other angle. 5 A dodecagon is a ...

... Index Each month , the UK Government Office for National Statistics publishes the latest Consumer Price Index ( CPI ) ... 2016 . The CPI is calculated using a very large ' shopping basket ' of around 700 goods and services on which people ...