![Page 1: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/1.jpg)
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
mynce
rtsolu
tions
.com
![Page 2: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/2.jpg)
mynce
rtsolu
tions
.com
![Page 3: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/3.jpg)
mynce
rtsolu
tions
.com
![Page 4: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/4.jpg)
mynce
rtsolu
tions
.com
![Page 5: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/5.jpg)
mynce
rtsolu
tions
.com
![Page 6: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/6.jpg)
mynce
rtsolu
tions
.com
![Page 7: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/7.jpg)
mynce
rtsolu
tions
.com
![Page 8: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/8.jpg)
mynce
rtsolu
tions
.com
![Page 9: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/9.jpg)
mynce
rtsolu
tions
.com
![Page 10: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/10.jpg)
mynce
rtsolu
tions
.com
![Page 11: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/11.jpg)
mynce
rtsolu
tions
.com
![Page 12: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/12.jpg)
mynce
rtsolu
tions
.com
![Page 13: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/13.jpg)
mynce
rtsolu
tions
.com
![Page 14: NCERT SOLUTIONS CLASS-VIII MATHS CHAPTER- UNDERSTANDING … · (a) The diagram has 4 sides. Hence, Quadrilateral. 600 Total sum of the angles of quadrilateral = 360 3600 3600 3600](https://reader035.vdocuments.net/reader035/viewer/2022071217/604d0010c21cce50821dadd7/html5/thumbnails/14.jpg)
mynce
rtsolu
tions
.com