An adverb of negation is employed in order to negate an
adverbial. The most common adverb of negation or negator is 'not.'
Another common example is 'never..
A triangular plot of land has sides that measure 5 meters 7 meters and 10 meters What is the area of this plot of land to the nearest tenth of a square meter
The perimeter of a rectangular garden is 84 feet the length of the garden is twice the width