Leabhar Iomlán - Cogg

14. 170 m 25cró411. (i) 84 cm 3 (ii) 12 cm, 148 cm 2(iii) Toirt ___ m 36 , Achar ___ m 22 ( 1 √ __2 √ __5 )12. (i) (a) 2744 cm 3(b) 14371_3 cm3(c) 48%(ii) níos lú, 33 1 3 %13. 496.4 cm 3Cleachtadh 6.31. (i) (a) 10.5 m 2 (b) 18.5 m 2(c) 2771.3 cm 2 (d) 560 cm 2(e) 336 cm 2 (f) 749.4 cm 2(ii) (a) 2.1 m 3 (b) 4.3 m 3(c) 8000 cm 3 (d) 800 cm 3(e) 254 cm 3 (f) 1128.5 cm 32. (i) f : 2427 mm 2 , d: 2121 mm 2 , b\a: 1257 mm 2 ,e: 905 mm 2 , g: 805 mm 2 , h: 720 mm 2 ,c: 283 mm 2 , i: 153 mm 2(ii) f : 7238 mm 2 , d: 7069 mm 2 , a: 4189 mm 2 ,b: 2962 mm 2 , e: 1810 mm 2 , g: 1257 mm 2 ,h: 1056 mm 2 , c: 339 mm 2 , i: 144 mm 23. (i) 4.92 m 3(ii) rogha 2 (30 in aghaidh 100 kg): 390(iii) V ___________h tan 2a.h.w2(iv) bun 1.45 m, barr 2.65 m4. (i) x 2.5 cm(ii)(iii) 24 cm 3(iv)3 cm5 cm3 cm, priosma triantánach2 cm5. (i) 476.4 cm 3 (ii) 1481.0 cm 36. (i) 3 u 23 nóim (ii) 4 u 46 nóim7. (i) 700 cm 3(ii) 505 cm 28. Toirt 422 cm 3 , Achar 484.16 cm 29. (a) achar (b) fad (c) achar(d) fad (e) achar (f) fad(g) toirt (h) toirt10. (i) comhsheasmhach (ii) ar neamhréir(iii) ar neamhréir (iv) comhsheasmhach(v) comhsheasmhach (vi) ar neamhréir(vii) comhsheasmhachCleachtadh 6.41. 13.10 ha2. (i) 2.2% (ii) 17.01 cm 23. (i) 17.5 u 2 (ii) 17.875 u 24. 1.82 u 25. (i) 1 : 2.14 (ii) 2.5636. 81 720 km 2Súil Siar (Croícheisteanna)1. 2 : 12. (a) Achar 1464 cm 2 ; toirt 3589 cm 3(b) Achar 434 cm 2 ; toirt 523 cm 3(c) Achar 25 500 cm 2 ; toirt 225 000 cm 33. (i) 1.28 raid (ii) 16 cm 2 (iii) 1:1.3914. Toilleadh 450 m 3 , 750 uair an chloig5. (i) x √ ___20 (ii) x 3.96 cm(iii) x 0.99 raid6. Cruthúnas7. (i) 10.6u 2 (ii) 16.73u 28. 4 2 √ __5 2 √ __69. (i) 16 cm 50.3 cm(ii) 32 cm 2 10 0.5 cm 210. 38 186.7211. 112.7 cm 3Súil Siar (Ardcheisteanna)1. (i) Cruthúnas (ii) r 25(iii) 2 raidian (iv) A 625 cm 22. (i) A: 2500 poll; B: 2822 poll(ii) A: 21.46%; B: 11.34%3. (i) Achar PQO 1_2 r2 sin (ii) Achar an teascáin 1_2 r2 ( sin )(iii) Achar PQN 1_2 r2 (sin ( ))4. (d) Achar an dromchla 56 077 cm 2 ;toirt 133 518 cm 3(e) Achar an dromchla 1092 cm 2 ;toirt 1767 cm 3(f) Achar an dromchla 332 cm 2 ;toirt 435.63 cm 35. (i) 4.189 cm 2 (ii) 2.4567 cm 26. (i) 1.84 raid (ii) 80.96 m(iii) 26.7 m (iv) 848 m 27. Cruthúnas(i) r 3.3 cm (ii) A 24.22 cm 28. (i) A B: ag luasghéarú beagnach gohaonfhoirmeach294