Maths GCSE equations

What is the equation for the VOLUME of a CONE

• 1/3 x r² x h x 兀

• 4/3 x r² x 兀

• 兀R² x 兀RL

• 1/3 x h² x r x 兀

How do you find the MODE

• Sort the numbers from smallest to largest.

  Do (N + 1)/2 then go to that number and that is the answer for even numbers the same but N / 2

• add them all then divide by the amount of numbers.

• The one that comes up the most.

• Largest number - smallest number = mode

How do you find out the CIRCUMFERENCE of a circle?

• 2 x r² x 兀

• 2 x 兀 x r

• 4/3 x r³ x 兀

The diameter is just double the radius.

• True

• False

The SURFACE AREA of a SQUARE is length²

• True

• False

What is the equation for the SURFACE AREA of a CONE?

• length²

• (R² X 兀) + (兀 X BASE X slanted)

• 4 x r² x 兀

• 1/3 x r² x H x 兀

What is the equation for the MEDIAN

• (N + 1) / 2

• Biggest number - smallest number

• Cough syrup + fizzy drinks

• 4 x 兀 x r

What is the equation for the VOLUME of a SQUARE BASED PYRAMID

• 兀 x R³ / 2

• 2 x 兀 x r

• 兀r² + 兀RL

• (Base x height)/3

What is the equation for the RANGE

• base x height / 4

• Largest number - smallest number = range

• add them all together then divide by amount of numbers = range

SURFACE AREA of a SPEHERE

• 2/3 x 兀 x r³

• 4/3 x r ³ x 兀

• 4 x R² x 兀