Extra Stuff Flashcards
1
Q
If a bunch of numbers/letters has two lines on either side, what does this mean?
A
It is the magnitude of the vector
2
Q
What is the median line?
A
The line through a corner of the triangle and through the midpoint of the opposite side.
3
Q
What is an altitude?
A
The line through a corner of the triangle that lands perpendicular to the opposite side.
4
Q
What is a perpendicular bisector?
A
The line that goes through the midpoint and is perpendicular to that line.
5
Q
What is the square root of 4 ?
A
2 or minus 2
6
Q
How do you prove that a line is tangent to a curve?
A
Prove that the discriminant is equal to zero. Therefore, the lines intersect once. Or find the coordinates of the points by factorising, if tangent there will be one solution.
