Page 1 :
Chapter 10 - Visualising solid shapes, , @ There are three different kinds of shapes:, 1, One-dimensional shapes: Shapes with only one dimension: length., Consider the following example: a line., , ll. Two-dimensional Shapes: Two-dimensional shapes have two, dimensions: length and breadth. A polygon, a triangle, a rectangle, and, $0 on are examples of shapes. Two-dimensional figures are sometimes, referred to as 2-D figures., , , , , , , , O, , a, , , , , , , , , , , , , , @, , ae, eemeniaiedl, , , , , , , , , , , , lil, Three dimensional Shapes: Solid objects and shapes with length,, breadth, and height or depth are referred to as three-dimensional, shapes. Cubes, cylinders, cones, cuboids, spheres, and other geometric, , shapes are warnples., , , , IV. Faces: A three-dimensional figure’s face is a flat surface., , ‘Scanned with CamScanner

Page 2 :
=., Vv. Edges: An edge is a line segment that connects two faces of a solid., = Venex (8), , , , - Pyramid: A polyhedron with a polygon base and triangle lateral sides,, , “Scanned with CamScanner

Page 3 :
tex, , face, , edge, , Vertex is a place on a graph where three or more edges intersect., , Base: A polyhedron’s base is the face on which it is named., , FAB is Euler's formuta for any polyhedron, where F denotes the, number of faces. VV the number of vertices. and E the number of edges., Object recognition in 20 and 3D., , tn ee, , ‘Scanned with CamScanner

Page 4 :
Look at the given map of a city., , , , , , , , , , , , , , Answer the following., , (a) Colour the map as follows: Blue-water, redfire station, orange-library, yellow-schools,, Green-park, Pink-College, Purple-Hospital,, Brown-Cemetery., , (b) Mark a green ‘xX’ at the intersection of Road ‘C, and Nehru Road, Green ‘Y’ at the intersection of, Gandhi Road and Road A., , (c) In red, draw a short street route from Library, to the bus depot., , ‘Scanned with CamScanner

Page 5 :
Answer :, , (a) The given map coloured in the required way is as follows., , , , (d) Between the Market and the City Park, the City Park Is further east., , (e) Between the Primary School and the Sr. Secondary School, the Sr. Secondary School is further, south., , ‘Scanned with CamScanner