Exercise 3.1 Q1) Given below are some shapes. Identify the below diagrams based on the following category (a) Concave polygon (d)Simple closed curve (b) Simple curve (e) Polygon (I) (2) (l) (S) (6) (7) Ans.) (a) Concave pol ygon: (b) Simple curve: 1, 2, 5, 6 and 7 (c) Convex polygon: 2 (4) (8) (d) Simple closed curve: 1, 2, 5, 6 and 7 (e) Polygon: 1 and 2 (c)Convex polygon Q2) Identify the number of diagonals does each figure have? (a)Regular hexagon Ans.) (a)Regular hexagon It has 9 diagonals (b) Triangle It has no diagonals. (c) Convex quadrilateral (b)Triangle (c)Convex quadrilateral NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER-3 UNDERSTANDING QUADRILATERALS myncertsolutions.com
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Exercise 3.1
Q1) Given below are some shapes.
Identify the below diagrams based on the following category
(a) Concave polygon
(d)Simple closed curve
(b) Simple curve
(e) Polygon
(I) (2) (l)
C) (S) (6) (7)
Ans.)
(a) Concave polygon:
(b) Simple curve: 1, 2, 5, 6 and 7
(c) Convex polygon: 2
(4)
(8)
(d) Simple closed curve: 1, 2, 5, 6 and 7
(e) Polygon: 1 and 2
(c)Convex polygon
Q2) Identify the number of diagonals does each figure have?
(a)Regular hexagon
Ans.)
(a)Regular hexagon
It has 9 diagonals
(b) Triangle
It has no diagonals.
(c) Convex quadrilateral
(b)Triangle (c)Convex quadrilateral
NCERT SOLUTIONS CLASS-VIII MATHS
CHAPTER-3 UNDERSTANDING QUADRILATERALS
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