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IGCSE Math - Marcador
IGCSE Math - Detalles
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Preguntas:
78 preguntas
| 🇬🇧 | 🇬🇧 |
| Formula | Sin |
| Formula: | Cos |
| Formula: | Tan |
| Formula: | Area of a circle |
| Formula: | Circumference of a circle |
| A = lw | Area of a rectangle |
| P = 2l + 2w or P = 2(l + w) | Perimeter of a rectangle |
| Formula: | Area of a triangle |
| A = bh | Area of a parallelogram |
| Formula: | Area of a trapezium |
| V = lwh | Volume of a cuboid |
| 2lw + 2wh + 2lh (sum of the area of all the faces) | Surface area of a cuboid |
| Formula: | Surface of a cylinder |
| Formula: | Volume of a cylinder |
| Formula | Volume of a pyramid |
| Formula: | Volume of a cone |
| Formula: | Surface area of a cone |
| Formula | Volume of a sphere |
| Formula: | Surface area of a sphere |
| Formula: | Gradient/slope |
| Formula: | Sum of interior angles |
| Formula: | Interior angle in a regular shape |
| 360 degrees | Sum of exterior angles |
| Formulas | Distance/speed/time |
| Only what A and B have in common | A n B (read as A intersect B) |
| Everything in A AND everything in B | A U B (read as A union B) |
| Everything NOT in A | A' (read as A complement) |
| I = PRT | Simple Interest |
| Formula | Compound Interest |
| Formula: | Pythagoras theorem |
| Image | Alternate angles |
| Image | Corresponding angles |
| Image | Vertical angles |
| Always = 1 | Sum of probability outcomes |
| Probability of A x probability of b | Probability of A and B happening |
| Probability of A + probability of B | Probability of A or B happening |
| Measure from the north and always measure clockwise | How do you measure bearings? |
| Formula | Multiplying indices with the same base |
| Formula | Dividing indices with the same base |
| Formula | Multiplying indices together |
| Any number or letter to the 0 power = 1 | Zero power |
| Formula | Negative indices |
| Formula | Percent change |
| Y = y-value m = gradient/slope of the line x = x-value c = y-intercept (where the graph intersects the y-axis) | What do the letters in y = mx + c represent? |
| Mean | The average of a set of numbers add all the numbers and divide by how many numbers there are |
| Median | The number in the MIDDLE of a set of data (data must be in order from least to greatest!) |
| Mode | The number in a set of data that occurs the MOST |
| Range | The difference between the smallest and largest numbers in a set of data |
| Order of symmetry | How many times the picture looks the EXACT same as you rotate it around |
| Gradient/slope | Change in y divided by change in x the measure of how steep a line is |
| Y-intercept | Where the graph crosses the y-axis |
| Origin | The center of a coordinate plane (0,0) |
| Parallel lines always have the same... | Gradient/slope |
| Isosceles triangle | 2 sides are equal and 2 angles are equal |
| Scalene triangle | All three sides and angles are different |
| Obtuse | 90 < angle < 180 |
| Acute | 0 < angle < 90 |
| Reflex angle | 180 < angle < 360 |
| What does "make x the subject" mean? | Change the equation so it's x = |
| Expand | Multiply what's outside the brackets with what's inside the brackets (distribute) or if it looks like (x + 2)(x + 3) then FOIL |
| FOIL: what does that mean? | Multiply the FIRST terms, then the OUTER terms, then the INNER terms, then the LAST terms |
| Factor/factorize | Take an expression and put it back into brackets, often looking for a highest common factor to "factor out" |
| Highest common factor | Find the largest factor two numbers have in common (factors are the numbers you multiply together to get the number) |
| Least common multiple | The smallest multiple two numbers have in common (multiples are the answers to a number's multiplication tables. example multiples of 5 are 5, 10, 15, 20, 25, etc.) |
| Prime factorization | The prime numbers that you can multiply to get a number, use a factor tree |
| Rotation | Turn (list angle of rotation, clockwise or counterclockwise, and the center of rotation) |
| Translation | Slide (list the vector x on top and y on bottom) |
| Reflection | Flip (list equation of mirror line y = or x =) |
| Enlargement | Make bigger or smaller (list scale factor-compare the side lengths, and find center of enlargement-drawing lines from each point) |
| The letters x and y are going to be in your expression | Write an expression in terms of x and y means.. |
| The largest a rounded number can be | Upper bound |
| The lowest a number can be | Lower bound |
| What does solve simultaneous equations mean? | You need to find the x value and the y value that make BOTH equations true! Usually use elimination method. |
| Nth term | A rule for a sequence involving the letter n |
| Line of best fit | A line drawn with an equal number of points above and below it |