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                                                                          Mathematics  Form 3  Chapter 7  Plan and Elevations     Mathematics  Form 3  Chapter 7  Plan and Elevations
                         (c)                                                                                                  8.  (a)  (i)  Length/Panjang = 5 × 5 = 25 cm            PT3 Standard Practice  7
                                               Quadrant II                               Quadrant I                                      Width/Lebar = 2 × 5 = 10 cm
                                                Sukuan II                                 Sukuan I
                                              Front elevation                           Side elevation                                   Height/Tinggi = 5 × 5 = 25 cm        Section A
                                              Dongakan depan                            Dongakan sisi
                                   D / A         5 cm           C / B       A / B          5 cm           D / C                                                                1.  Answer: B
                                                                                                                                     (ii)  Volume/Isi padu
                                                                                                                                            1                                  2.  Answer: B
                                                                                                                                         =  (10 × 25 × 5) + (10 × 25 × 20)
                                                                                                                                            3
                                                                                                                                                2                              3.  Answer: C
                                                                                                                                                     3
                                                                                                                                         = 5416  cm
                                                  P                                          P                                                  3                              4.  Answer: B
                                                                                                                                                                               5.  Answer: D
                                 6 cm                                                                       6 cm
                                                                                                                                                             25 cm
                                                                                                                                                                               6.  Answer: A
                                                                                                                                         20 cm
                                                                                                                                                       25 cm                  Section B
                                                                                                                                              10 cm
                                                                                                                                                                                1.                        Othogonal
                                   H / E                        G / F       E / F                         H / G                                                                            Diagram         projection
                                                                                                                                                                                             Rajah           Unjuran
                                                                                                                                                                                                             ortogon
                                                                          45°
                                                                                                                                                                                  (a)
                                   A / E                        B / F

                                                                                                                                                                                                                        ✓

                                                                                                                                                                                                     Y


                                 5 cm                                                                                                                                             (b)
                                                  P



                                                                                                                                                                                                      Y


                                   D / H         5 cm           C / G                                                                                                             (c)
                                               Plan / Pelan                             Quadrant IV
                                               Quadrant III                              Sukuan IV
                                                Sukuan III
                                                                                                                                                                                                                        ✓
                                                                                                                                                                                                    Y



                                                                                                                                                                                  (d)




                                                                                                                                                                                                       Y







                                                                   37                          © Penerbitan Pelangi Sdn. Bhd.  © Penerbitan Pelangi Sdn. Bhd.             38

                                                                                                                     A20



                BOOKLET ANS MATH F3.indd   20                                                                                                                                                                    03/01/2020   10:21 AM
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