What are at least twenty geometrical terms beginning with T and their meanings?

Answer 1

1 Triangle is 3 sided shape

2 Types of triangles are: scalene, right angle, isosceles and equilateral

3 Trigonometry is the science of measuring triangles.

4 Tangent line touches the circumference of a circle at one point

5 Tangent ratio for a right angle triangle is opp/adj

6 Transversal line cuts through parallel lines creating angles

7 Tessellation occurs when there are no gaps or overlaps between polygons

8 Three-figure bearings are clockwise from North

9 Transformation of shapes are plotted on the Cartesian plane

10 Translation is a movement of a shape in a straight line

11 Tetrahedron is a triangular-based pyramid

12 Two-dimensional shapes have only length and area

13 Three-dimensional shapes have length, surface area and volume

14 Theorem of Pythagoras: a2+b2 = c2 for a right angle triangle

15 Trapezoid (or trapezium) is a quadrilateral with two parallel sides

16 Ten-sided polygon is a decagon

17 Twelve-sided polygon is a dodecagon

18 Total degrees in any polygon: (n-2)*180 where 'n' is number of sides

19 Two lines an equal distance apart are parallel lines that never intersect

20 Twice the radius of a circle is its diameter

21 Triangular prism has 5 faces, 9 edges and 6 vertices

22 Topology is the study of geometrical properties

23 Torus is a shape like a donut or bagel.

24 Terminal arm: An angle is measured counterclockwise from the initial arm to the terminal arm.