A symmetrical pattern is a pattern in which converging lines form an angle that somewhat resembles an acute angle. When two patterns are symmetrical, one becomes exactly like another when flipped or turned, according to Primary Resources.
Continue ReadingA common example of symmetry is a reflection. The image of an object looks exactly like the object when turned through an angle of 180 degrees. In geometry, some shapes have lines of symmetry. Such a shape is symmetrical because, when folded along that line of symmetry, it gives two equal halves that look exactly the same. Symmetrical patterns are evident among regular objects, or objects with proportional form.
Learn more about GeometryThe classic labyrinth pattern begins with two equal-length crossed lines, opposite facing "L" shapes in each top quadrant of the cross, opposite-facing, upside down "L" shapes in the lower quadrants and dots at the angle of each "L." Draw a curving line from the top of the cross to the line on its right and from the top of the line on the left to the dot on the right. Connecting lines and dots, left to right, completes the pattern.
Full Answer >The Hypotenuse Angle Theorem states that if one of the acute angles and the hypotenuse of a right triangle are congruent to the corresponding acute angle and hypotenuse of a second triangle, \this proves that the two triangles are also congruent. In math, this theorem is one of a few theorems used to prove right triangle congruency.
Full Answer >A ramp forms an acute angle in relation to the ground, and a ladder forms an acute angle when leaned against a building. The sharply angled, pointed shape of a slice of pizza is another common example. One famous acute angle in pop culture occurs when the character Pac-Man opens his mouth to devour the dots.
Full Answer >An angular unconformity is a geological phenomenon where an older layer of rock sits directly beneath a much younger layer of rock because the older layer was forced up at an angle, eroded, and younger rock deposited on top of it. An angular unconformity only stays constant for a relatively short distance into a rock face. Digging horizontally into the older rock reveals younger angled layers.
Full Answer >