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Jawapan Jawapan

6 hy BAB 3 RUMUS ALGEBRA 3. (a) (i) w = − 2 (b) (i) b = 2 2. (a) Sudut pedalaman: a, g, e, c
7. (a) (b) 9
(a – 3)(3 + a) (k – 2)(h + 3) Sudut peluaran: b, d, f, h
2 JOM CUBA 3.1 (ii) x = – 15 (ii) c = 8 (b) Sudut pedalaman: a, b, c, d, e
(c) 6m n (d) 2rs − 8r 19 Sudut peluaran: f, g, h, i, j
(m – n)(n – 2m) rs + 5s − 2r − 10 (iii) y = 29 (iii) d = 3
1. (a) m = z + qp (b) u = v – 2
8. (a) 2 (b) 5r (c) x = 7w (d) b = 4 – 5 (c) (i) p = – 1 (d) (i) s = – 1 3. (a) x = 150° (b) x = 100°

(c) x = 22°
(d) x = 54°
m(x – a) s(1 – 2r) 3y 3a 6 5
x + 3 –2f (e + 2f ) 3 5 1 (ii) t = −46 4. (a) p = 80° (b) p = 68°
(c) 5x (d) 3e(e – 3f ) (e) u = 5q + 5 (f) v = 2w + 4 (ii) q = – 19 q = 55° q = 100°

2
(2a – 5) 2 (iii) r = 1 1 (iii) u = – 11 r = 125° r = 88°
5a (a + b) 3 (g) b = (h) w = 6t 6
9. (a) (b) 3 5. (a) a + b + c = 300° (b) a + b + c = 170°
3b(2a + 3) 2a 4. z = 65xy (c) a + b + c = 265° (d) a + b + c = 254°
y 1 (i) m = – �4p – 8 (j) r = 4s – 7
(c) (d) 3 1 6. (a) 7 sisi (b) 8 sisi (c) 9 sisi
3x 2 eg 3 5. t = 13 s minit 7. (a) Dekagon (b) y = 144°
3
10. (a) xy (x + 1) (b) 2q (p + 1) 2. z = 29.75x + 40.5y 6. x = 4 8. x = 117°

y = 7
(x + y) 2 2p – 1
pr t (2t + 1) 3. (a) (i) c = 16 (b) (i) p = 2
(c) (d) 1
(r – 1)(q + r) (2t – 1)(s – u) (ii) d = (ii) q = 2 MENJANA KECEMERLANGAN
2 BAB 4 POLIGON
(c) (i) m = −6 (d) (i) n = 13 JOM CUBA 4.1 1. (a) Jawapan murid (b) Jawapan murid
MENJANA KECEMERLANGAN 2. (a) p = 40° (b) p = 45° (c) p = 75°
(ii) n = 3 (ii) m = 1 1. (a) Poligon tak sekata (b) Poligon tak sekata q = 135° q = 95° q = 140°
1. (a) 3a + 6b (b) n – 3n – 10 16 (c) Poligon sekata (d) Poligon sekata r = 95° r = 50° r = 105°
2
(c) a + 4ab + 4b 2 (d) 16x – 8xy + y 2 (e) (i) u = 6 (f) (i) p = 0 (e) Poligon tak sekata (f) Poligon sekata
2
2
(e) 6v + v – 2 (f) 13h – 10hk + k 2 (g) Poligon sekata (h) Poligon sekata 3. (a) x = 50° (b) x = 42.5° (c) x = 80°
2
2
3w 9w 2 3 9 (i) Poligon sekata
(ii) r = (ii) q = 4. (a) 360° = 8 sisi (b) 360° = 10 sisi
2. (a) 6m(2 – 3m) (b) (y + 9)(y – 9) 2 2 2. (a) satu paksi simetri (b) 2 paksi simetri 45° 36°
(c) 4ab(1 – 2a) (d) (x – 4y)(x + 4y) (iii) s = 4 (iii) r = −4 (c) tiada paksi simetri (d) tiada paksi simetri
(e) (s – 4)(s – 2) (f) (x + 1)(x + 3) (c) 360° = 9 sisi (d) 360° = 12 sisi
(g) (x – 3)(x + 5) (h) (x + 2)(x + 4) (g) (i) a = 1 (h) (i) s = 12 40° 30°
(i) (2c – b)(3d – e) 3 3. Nama Bilangan Bilangan Bilangan Paksi 5. (a) x + y = 215° (b) x + y = 180°

3a − 2b + 2 12ec − 25abd (ii) b = 2 (ii) t = 50 Poligon Sisi Bucu Simetri (c) a + b + c + d = 425°
3. (a) (b)
4v 20abc (iii) c = 6 (iii) u = � 7 Heksagon 6 6 6 6. Jawapan murid
(c) 20 – 3f (d) pn + 2p + nm 4 Heptagon 7 7 7 7. 17 sisi
2
2
5f g m p 24p – 7 Oktagon 8 8 8

2
2
(e) 15x + 2y − 2y (f) 9rsz + 4 – 2r 4. (a) z = 5.9x + 3.6y (b) b = q Nonagon 9 9 9 8. p + q = 276°
24xyz 36yz (c) P = 0.85(35 m + 76n) (d) x = RM0.1st 4. Jawapan murid 9. ∠CBM = 58°
4. (k + 4) cm 5. Jawapan murid
10. (a) h = 20°
MENJANA KECEMERLANGAN (b) Sudut pedalaman = 140°
5. 4x + 4x – 6 JOM CUBA 4.2 Sudut peluaran = 40°
2
6. (i) 25 buah (ii) 21 unit 1. (a) A = x (b) p = 5 + 3h 1. Bilangan segi tiga di (c) Bilangan sisi, n = 360° = 9, nonagon
2
40°
v – v dalam poligon Jumlah sudut pedalaman
7. (i) 2x + 14x − 10 (c) a = 2 t 1 11. x = 54°
2
(ii) RM(16x + 112x − 80x) m – p 3 540°
3
2
2. (a) q = (b) w = p – x 4 720° 12. Tidak boleh, kerana jumlah sudut pedalaman mesti
7 + 4x –3 mempunyai nilai (n − 2) × 180° dengan n = 3, 4, ...
8. (i) (ii) 2 jam 5 900°
2 (c) g = 2e – 3h (d) q = m – 8p 6 1 080°
4 13. 12 sisi
2
3x + 8x + 4 w 7 1 260°
9. cm 2 8m
18 (e) v = 3 (f) n = 3 14. x = 72°
10. (i) xy (ii) (xy − 2x)m (iii) 18xy (g) v = 36w – 1 (h) k = 16 + 7 15. x = 12°
2
f 2
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