MT-3 Flashcards
1
Q
If a line has 2 radius and a line joining them together what angles are equal?
A
The two angles that aren’t beside the centre of the circle
2
Q
If the squared value is a letter does it need to be squared in the equation?
A
YES!
3
Q
If the first sign is a subtract and the second is a add in a trinomial what will the 2 signs be?
A
2 subtracts
4
Q
If the first sign is a add and the second sign is a subtract in a trinomial what will the 2 signs be?
A
One add, and one subtract
5
Q
What is the formula for area of a sector?
A
X
—- x Pi x r2
360
6
Q
What is the formula for length of a sector?
A
X
—- x Pi x D
360
7
Q
how do you work out the mean?
A
all the numbers in three data set
————————————————
the number of values in the data set
