Knowing that the latin root -equi- means "equal," choose the best meaning for the word equilateral as it is used in the sentence below.
the box appears to be square, but i would have to measure its sides to prove that it is equilateral.

a. equally distributed.
b. well balanced.
c. having many sides.
d. having equal sides.

The answer is D.

Explanation:

Lateral is Latin term which means side. It is mostly used to describe sides of an object, so we can say for example side of the box, side of a car, side of a human body... Since -equi- mean equal and lateral means side, the correct answer is D, the object , or in this case a box whose sides are all equal.

Potentially confusing answer could be C (having more sides). As a synonym for this we would use another Latin prefix  multi- which means many (multilateral)

the answer will be the third choice

explanation: