Changing the way you learn

Question	Answer
When do you use trigonometry? (sOhcAhtOa)	In right angled triangles where an interior angle is involved (not the 90 degree one) and you know 2 measurements.
When do you use Pythagoras? (a squared + b squared = c squared)	When no angles are involved, trying to find a length.
In Pythagoras where is c?	Opposite the right angle.
When is the sine rule used? (a/sinA = b/sinB = c/sinC)	On a non-right angled triangle to find angles or sides.
When is the cosine rule used?	In a non-right angled triangle when the is no matching pair.
What is a good way to solve a quadratic equation? (x squared+x+n=0)	The quadratic formula in the front of paper.
In a histogram what is the width and how do you get it?	The class width = the range between each individual variable category ie-'height 0<20' would be the difference between 0 and 20.
In a histogram what is the height and how do you calculate it?	frequency density = freq density/class width
In a histogram how do you find out the mean?	Total(midpoint x freq)/total freq
How do you solve an algebraic equation graphically?	1) Plot 2) state where they cross
What is 'BIDMAS'?	Calculate things in the order of: Brackets, Indices(powers), Division, Multiplication, Addition, Subtraction.

Maths Revision- end of year test

	Created by hannahsquires over 10 years ago