(a) θ = 120˚
OQ = 9 cm
(b) 48π cm2
(a) 250 / 9 π cm2
(b) 49.2 cm2
(c) 38.0 cm2
1. 15 π cm
2. 72 cm
3. θ = 200˚
4. 18 cm
5. (a) θ = 50˚
(b) 5π + 36 cm
6. (a) 5.77
(b) 20.5 cm2
7. (a) 27 cm
(b) 12π + 54 cm
8. (a) 72˚
(b) 320π cm2
(a) 3
(b) 72π cm3
(a) 12 cm
(b) 36 cm
1. 1215π m3
2. 522π mm2
3. 84π cm3
4. 135π cm2
5. 1152π cm3
6. 1875π cm2
7. 405 cm2
8. 350π cm3
9. 體積 = 1134π cm3
總表面面積 = 387π cm2
10. 283 cm3
11. 392 cm3
12. 9 cm
13. (a) 8
(b) 213 cm2
(c) 114 cm2
14. (a) 同意
(b) 54 cm
15. (a) 54π cm3
(b) 7
(c) 42π cm2
體積 = 1080 cm3
總表面面積 = 634 cm2
(a) 108π cm3
(b) (i) 6
(ii) 0.995
1. 304π cm2
2 (a) 222 cm3
(b) 362 cm2
3. (a) 972π cm3
(b) 360π cm2
4. 666π cm3
5. (a) (i) r = 3, h = 10
(ii) 72π cm3
(b) 576π cm3
6. (a) 16875 cm3
(b) (i) 3605 cm3
(ii) 9.5 cm
7. 10 cm2
8. (a) 10 cm
(b) 484π / 3 cm3
9. (a) 1625π cm2
(b) 1890π cm2