-ful. 1  Used to form adjectives from nouns. 2  An adjective derived by this suffix implies a thorough and certain possession of the quality of that noun, not a metaphorical fullness with it by degree or quantity.ful. 1  Used to form adjectives from nouns. 2  An adjective derived by this suffix implies a thorough and certain possession of the quality of that noun, not a metaphorical fullness with it by degree or quantity.
big highway image by Galyna Andrushko from <a href='http://www.fotolia.com'>Fotolia.com</a>. A delta angle, a term well known to civil engineers, is a measurement used in designing roadways. The delta angle is used to make other relevant calculations, or it can be determined using known measurements. A delta angle is the measurement in degrees where two straight lines, also known as tangents, intersect. A horizontal circular curve is a mathematical calculation determining the optimal arc between two tangents. The measurement of the central curve on the arc is equal to the delta angle.
Obtuse Triangle. The Obtuse Triangle has an obtuse angle (an obtuse angle has more than 90Â°). In the picture on the left, the shaded angle is the obtuse angle that distinguishes this triangle. Since the total degrees in any triangle is 180Â°, an obtuse triangle can only have one angle that measures more than 90Â°.