Jawapan

Jawapan Paling Bijak!
2016-09-29T15:46:24+08:00
PT = 70 m , TU = 2 × 22/7 × 70 = 440 m , VW = square root of ( 80^2 + 60^2 ) = 100 m , VU = 240 m - 70 m - 60 m = 110 m , WR = 140 m - 80 m = 60 m , TS = 70 m , FANCE NEEDED = 70 m + 240 m + 60 m + 100 m + 110 m + 440 m = 1020 m
1 5 1
2016-09-29T16:32:10+08:00
TU = 90/360×2×22/7×70 = 110m
UV = 240-70-60 = 110m
VW = √(60²+80²) = 100m
WR = 140-80 = 60m
RS = 240m
ST = 140÷2 = 70m

length of fence needed = TU+UV+VW+WR+RS+ST
= 110+110+100+60+240+70 = 690m