Q.Write name of the polygon having given sides
a) 3 sides
b) 4 sides
c) 5 sides
d) 6 sides
e) 7 sides
f) 8 sides
Answers
(i) 3 sides
A regular polygon having 3 sides is known as an equilateral triangle. Each interior angle is equal to 60∘.
(ii) 4 sides
A regular polygon having 4 sides is known as square. Each interior angle is equal to 90∘.
(iii) 6 sides
A regular polygon having 6 sides is known as a regular hexagon and its interior angle is equal to 120∘.
Note: Remember all the names according to the number of sides of a regular polygon.
Also, remember that each interior angle of any regular polygon having ‘n’ sides is given by,
θ=(n−2n)×180∘
The students might just write the answer as triangle and quadrilateral, but here we have been given that we have to name regular polygons, so students have to take care of this mistake.
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Answer:
a) triangle
b) square ( or) rectangle
c) polygon
d) hexagon
e) hectogon
f) octogon