in simple math terms it is the length times height of a 2 dimension object the units are squared so if the length is five in and the height is 4 inches then the area would be 20 inches^2(squared)
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
No.
neither
A rhombus.
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Dekagrams.
milligrams