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Earn +20 ptsQ: How many straight lines is formed for a polygon?
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What shape is a quadrilateral and a polygon?
A quadrilateral has 4 sides whereas a polygon has many sides which includes a quadrilateral
How many lines of symmetry does an 18 sided polygon have?
36
How many lines of symmetry does a regular polygon with 40 sides have?
40 lines.40 lines.40 lines.40 lines.
A closed geometric figure made up of three or more lines segment?
A closed geometric figure could be called a polylateral - but that is a very obscure word - or simply a polygon. Generally such a figure is referred to in terms of how many lines it is composed of: 3 = triangle 4= quadrilateral 5 = pentagon, etc.
How many triangles are formed by the diagonals in a 21 sided polygon?
The number of triangles formed by the diagonals of a 21 sided polygon is C(21,3) = 21x20x19/3x2x1 = 1,330.
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