The sweet, lazy whistles of Eastern Meadowlarks waft over summer grasslands and farms in eastern North America. The birds themselves sing from fenceposts and telephone lines or stalk through the grasses, probing the ground for insects with their long, sharp bills.
A median of a triangle is a straight line through a vertex and the midpoint of the opposite side, and divides the triangle into two equal areas. The three medians intersect in a single point, the triangle's centroid or geometric barycenter, usually denoted by G.wo triangles are said to be similar if every angle of one triangle has the same measure as the corresponding angle in the other triangle. The corresponding sides of similar triangles have lengths that are in the same proportion, and this property is also sufficient to establish similarity.
triangle-any of various triangular drafting instruments used to draw straight lines at specified angles. drafting instrument-an instrument used by a draftsman in making drawings.. a flat triangular piece with straight edges, used in connection with a T square for drawing perpendicular lines, geometric figures, etc. 3. any three-cornered or three-sided figure, object, or piece: a triangle of land.