EASY
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Identify an octagon from the following figures:

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Important Questions on Understanding Elementary Shapes

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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
The area of an equilateral triangle is 493 cm2. Find its side (in cm.).
MEDIUM
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
Let a=BC, b=CA, c=AB be the side lengths of a triangle ABC, and m be the length of the median through A. If a=8, b-c=2, m=6, then the nearest integer to b is
MEDIUM
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
In a circle with centre O, AB is the diameter and CD is a chord such that ABCD is a trapezium. If ∠BAC=40°, then ∠CAD is equal to:
EASY
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
The sum of the interior angles of a convex n-sided polygon is less than 2019°. The maximum possible value of n is
HARD
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
A point P in the interior of a regular hexagon is at distance 8,8,16 units from three consecutive vertices of the hexagon, respectively. If r is radius of the circumscribed circle of the hexagon, what is the integer closest to r?
EASY
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
The area of a field in the shape of a regular hexagon is 24003 m2. The cost of fencing the field at Rs.16.80/meter is:
EASY
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
Twelve solid hemispheres of the same size are melted and recast in a right circular cylinder of diameter 7 cm and height 28 cm. What is the radius of the hemispheres?
EASY
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
If the measure of the interior angle of a regular polygon is 1080, then how many sides does It have?
EASY
Mathematics>Geometry>Understanding Elementary Shapes>Polygons

The sum of the interior angles of a regular hexagon is_____

(A) 360°

(B) 540°

(C) 720°

(D) 900°

MEDIUM
Mathematics>Geometry>Understanding Elementary Shapes>Polygons
Draw a rough sketch of a regular octagon. Draw a rectangle by joining exactly four of the vertices of the octagon.
EASY
Mathematics>Geometry>Understanding Elementary Shapes>Polygons

All closed curves form polygons.

MEDIUM
Mathematics>Geometry>Understanding Elementary Shapes>Polygons

In the figure, ABCDEF is a regular hexagon. Prove that ACDF is a rectangle.

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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
Examine whether the following figure is a polygon or not. If it is not, say why?

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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
Which of these simple closed figures is also a polygon?
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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
Polygons that have no portions of their diagonals in their exteriors are called_____.
MEDIUM
Mathematics>Geometry>Understanding Elementary Shapes>Polygons

Examine the given figure and explain whether it is a polygon or not. (Yes/No)

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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
All the angles of a regular polygon are of ________________.
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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
What is the number of sides in Hexagon ?
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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
What is a regular polygon? State the name of a regular polygon of 3 sides.
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Mathematics>Geometry>Understanding Elementary Shapes>Polygons
The polygon with 7 sides is called _____.