maths :( Flashcards
1
Q
how do you calculate the area of a triangle
A
bh/ 2
2
Q
which side is the hypotenuse
A
longest side
3
Q
which side is the adjacent
A
side next to the angle
4
Q
which side is the opposite
A
side one across from the given angle
5
Q
Pythagoras
A
a2+b2=c2
6
Q
sin
A
opposite/ hypotenuse
7
Q
cos
A
adjacent/ hypotenuse
8
Q
tan
A
opposite/ adjacent
9
Q
how do you calculate the area of a circle
A
πr2
10
Q
how do you calculate the circumference of a circle
A
πd
11
Q
Volume
A
length x width x height
12
Q
surface area of a shape
A
find the area of each face and add them together
13
Q
area of a rectangle
A
bh
14
Q
area of a trapeze
A
a+b/2 h
15
Q
mean
A
add up the values in the data set and then divide by the number of values that you added
