Tirada gaarka ah ee is-beddelka waa in lagu go'aamiyaa xaaladaha goobta dhismaha ee booska loo xisaabiyo, waxayna la xiriirtaa dhererka geedka, kala-baxa ulaha toosan, isgoysyada iskutallaabta, iyo masaafada tallaabada.
Tusaale ahaan: kala-goynta baararka toosan iyo toosan ee xargaha waa 1m * 1m, masaafadda tillaabada waa 1.5m, oo aagga labajibaarane (5m), ka dib tirada guud ee qaddarka ayaa ah:
1. Dhex dhererka lakabka-hal-lakabka: (2 + 1) * 5 + (5 + 1) * 2 = 27m
2. Iyada oo masaafo tillaabo ah oo ah 1.8m dherer ah oo ah 2.8m, waxaa jira saddex lakab oo shelf ah, sidaa darteed tirada guud ee saddexda lakabyadu waa 27 * 3 = 81m
3. Ulaha waa: 6 * 3 = 18, dhererka waa 2.8 * 18 = 50.4m
4. Wadarta guud ee dhammaan xirmooyinka 10 mitir oo laba jibbaaran (marka laga reebo geesaha sphshor, geesaha jajabinta, iwm.) 81 + 50.4 = 131.4m = 131.4m
Waqtiga Post: Sep-18-2021