標題:
maths
發問:
Q: a distance of 2 km is represented by 1 cm on the map. 1]a pool has an area of 2 cm次方on the map. find it's actual area. Q: 3.33333 :9.9999999 Q: the scale of map = 1:100000. if a road is 5 cm on map .find its actual length Q: scale in map 1 :5000. a park is measured 4cm *3cm on map. find actual area
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maths
發問:
Q: a distance of 2 km is represented by 1 cm on the map. 1]a pool has an area of 2 cm次方on the map. find it's actual area. Q: 3.33333 :9.9999999 Q: the scale of map = 1:100000. if a road is 5 cm on map .find its actual length Q: scale in map 1 :5000. a park is measured 4cm *3cm on map. find actual area
最佳解答:
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Q: a distance of 2 km is represented by 1 cm on the map. 1]a pool has an area of 2 cm次方on the map. find it's actual area. 1cm=2km 2cm次方=(2×2)(2×2)km次方 2cm次方=16km次方 Q: 3.33333 :9.9999999 = 1 : 3.00000297 = 1 : 3 (corr to the nearest integer.) Q: the scale of map = 1:100000. if a road is 5 cm on map .find its actual length 1:100000 5:100000×5 5:500000 the actual length is: 500000cm=5km Q: scale in map 1 :5000. a park is measured 4cm *3cm on map. find actual area 4cm=5000×4=20000cm=0.2km 3cm=5000×3=15000cm=0.15km the actual area = 0.2×0.15=0.03km square.其他解答:
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