What are 26 geometrical facts and features fom A to Z?

Answer 1

Angles are classed as acute, right, obtuse and reflex

Base angles of an isosceles triangle are equal

Circumference of a circle is its perimeter and has a full turn of 360 degrees

Diameter of a circle is twice its radius

Equilateral triangle has 3 equal sides and 3 equal angles of 60 degrees

Fourteen degrees is an acute angle which is greater than 0 but less than 90 degrees

Geometry is derived from a Greek word meaning land or earth measurement

Heptagon is a 7 sided polygon

Interior angles of any polygon are: (n-2)*180 whereas 'n' is number of its sides

Joined line segments create angles and polygons

Kite is a 4 sided quadrilateral

Line segments have end points and a mid point

Multi-faced shapes are polyhedrons

Nonagon is a 9 sided polygon

Obtuse angle is greater than 90 but less than 180 degrees

Perpendicular lines meet at right angles which is 90 degrees

Quadrilaterals are 4 sided polygons

Right angle is 90 degrees and a reflex angle is greater than 180 degrees

Square is a regular polygon with 4 equal sides and 4 equal right angles

Triangle has 3 sides and 3 interior angles that add up to 180 degrees

Undecagon is an 11 sided polygon

Vertical opposite equal angles are created when lines cross as in X

Width times breadth is the area of a rectangle

X axis is the horizontal number line on the Cartesian plane

Y axis is the vertical number line on the Cartesian plane

Z as a letter has equal alternate angles