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\ 06-Jan-2025 Surendra Prajapati Proof-7 Reader’s Sign _______________________ Date __________

(a) Which block’s entrance faces north?

(b) Which block is nearest to the playground?
(c) Which block is smallest in size?
(d) Which block’s entrance faces east?

Solution: (a) Block-1 (b) Block-4
(c) Block-1 (d) Both Block-3 and 4

Practice Time 9B

1. Shown alongside is the map of a city.
(a) Look at the map and colour the map as per the instructions:
• School – Maroon Housing
• Housing societies – Pink societies Street 3 School Street 4 Hospital Street 5 Library
• Park – Green Mahatma Gandhi Road
• Restaurant – Orange
• Police station – Brown Swimming pool Street 1 Park Street 2 Bus stand
• Library – Magenta
• Swimming pool – Blue Abdul Kalam Road
• Mall – Grey Police Fire Restaurant Mall Bank

• Bus stand – Yellow station Street 6 Station Street 7 Street 8 Street 9
(b) Mark a point X at the intersection of Mahatma Gandhi Road and Street 1.
(c) Mark a point Y at the intersection of Abul Kalam Road and Street 2.
(d) Draw the route (using line) from the ‘Housing Societies’ to the ‘Restaurant’ and then to the ‘Library’.
2. Draw a map of your school using a proper scale and symbols for various things like classrooms, staff
room, playground, etc.
3. Draw a map showing directions from your house to your school using a proper scale. Use different symbols
for various landmarks.

Polyhedrons

The solids made up of flat polygonal faces are called polyhedrons. Remember
Some common terms associated with a polyhedron are: Polygons are simple shapes

• Faces (F): The flat surfaces that a make up polyhedron are called like square, rectangle and
its faces. triangle, etc which are made
up of line segments.
• Edges (E): The line segments where the faces join are its edges.
• Vertices (V): The points where the edges intersect each other are known as vertices.
Let us see a few examples.

1. Rectangular Prism (Cuboid): A solid with six rectangular faces
that meet each other at right angle is a cuboid. Here, we have:

F = 6: ABCD, EFGH, ADEH, CDEF, BCFG, ABGH.
E = 12: AB, BC, CD, DA, EF, FG, GH, HE, AH, DE, CF, BG.

V = 8: A, B, C, D, E, F, G, H.

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