perimeter or circumference The only answer is perimeter. The circumference is the the perimeter of a circle; the distance around a circle.
The quotient. In the problem 7 / 2 = 3 (+1) The 7 is the "dividend"; the 2 is the "divisor": the 3 is the "quotient" and the 1 is the "remainder".
It is a pentagon
is an arc.
A graph of some kind, which could be a line graph, a bar chart, a pie chat, a pictogram, etc.
A rectangle or a square.
The range is the difference between the greatest and least numbers.
27 cubic inches.
a bisect or bisector,
If you quote a concentration 'x' as so many parts per hundred, then that number does represent hundredths. It's just a fraction, x/100
correct answer is numerical order
A segment with end points on a circle is a chord.
Two lines cross or intersect at a point.
One hundredth of a gram is 10 milligrams.
Security is freedom from, or resilience against, the potential harm caused by others. Beneficiaries of security may be of persons and social groups, objects and institutions, ecosystems, or any other entity or phenomenon vulnerable to unwanted change.