Maths 0.0 / 5 MathematicsNumberGCSENone Created by: jorgiaaCreated on: 23-04-14 18:20 What is the HCF? The highest common multiple of two numbers is the highest number that is a factor of both numbers 1 of 17 What is the LCM? The lowest common multiple of two numbers is the lowest number that is a multiple of both numbers 2 of 17 What are prime numbers? A number that can only be divided by itself and 1 eg. 2,3,5,7,11,13,17,19,23,29 3 of 17 What are factors? The factors of a number are any whole numbers that divide into it exactly. 1 and the number itself are both factors of any number. 4 of 17 What is the formula for the area of a triangle? Base x height divided by 2 5 of 17 What is the equation on a straight line graph? y=mx+c 6 of 17 What is an acute angle? An angle less then 90 degrees 7 of 17 What is a right angle? An angle which is 90 degrees 8 of 17 What is an obtuse angle? An angle between 90 and 180 degrees 9 of 17 What is a reflex angle? An angle more than 180 degrees 10 of 17 Bearings are always measured... Clockwise from north 11 of 17 What is a line of symmetry? A mirror line 12 of 17 What is a quadrilateral? Any 4 sided shape 13 of 17 What is a congruent shape? 2 shapes that are exactly the same shape and size 14 of 17 how do you work out the perimeter of a shape? add all the lengths of the sides together 15 of 17 How do you work out the circumference of a circle? c= pie x d 16 of 17 How do you work out the area of a circle? A= pie x r squared 17 of 17

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