It means that two lines intersect each other at a ninety degree angle.
principal(in terms of math)- the amount you borrow or deposit
Perpendicular means that two lines intersect like an X but its just perpendicular
Milimeters
average
I assume you mean curve touching? It means that two or more curves intersect at a single point (tangent point).
It means that two lines intersect each other at a ninety degree angle.
principal(in terms of math)- the amount you borrow or deposit
HL in math mean hypotenuse leg
ask your math teacher
It
sum means the answer of a math problem
Perpendicular means that two lines intersect like an X but its just perpendicular
No.
neither
A rhombus.
Milimeters