Class 6 - Mathematics : Understanding Elementary
Exercise : 5.8
Top Block 1
NCERT Solutions Class 6 Mathematics Understanding Elementary Ex 5.8
Question: 1.Examine whether the following are polygons. If anyone among these is not, say why?
Answer :
(a) As it is not a closed figure, therefore, it is not a polygon.
(b) It is a polygon because it is closed by line segments.
(c) It is not a polygon because it is not made by line segments.
(d) It is not a polygon because it not made only by line segments, it has curved surface also.
Question: 2.Name each polygon:
Mddle block 1
Answer :
(a) Quadrilateral,
(b) Triangle,
(c) Pentagon,
(d) Octagon
Question: 3.Draw a rough sketch of a regular hexagon. Connecting any three of its vertices, draw a triangle. Identify the type of the triangle you have drawn.
Answer :
ABCDEF is a regular hexagon and triangle thus formed by joining AEF is an isosceles triangle.
Question: 4.Draw a rough sketch of a regular octagon. (Use squared paper if you wish). Draw a rectangle by joining exactly four of the vertices of the octagon.
Answer :
ABCDEFGH is a regular octagon and CDGH is a rectangle.
Question: 5.A diagonal is a line segment that joins any two vertices of the polygon and is not a side of the polygon. Draw a rough sketch of a pentagon and draw its diagonals.
Answer :
ABCDE is the required pentagon and its diagonals are AD, AC, BE and BD.
