1.An octopus card has lenght 8.5 cm and breadrth 5.4 cm.Suppose the card is rectangular in shape,find its area.
2.Forenec has apiece of sticker which is trapezoidal.the shorter base of the sticker is 1.5 cm,the longer base is 3 cm and the height is 4 cm.what is the area of the sticker?
3.A notebook computer has lenght 30 cm ,breadth 25 cm and thickness 2.5 cm.suppose this computer is a cuboid,find its volume.
- 1 decade agoFavorite Answer
1.octopus card's area:
2. area of the sticker:
(upper length+lower length)*height/2
3.volume of the notebook computer:
- 1 decade ago
2007-08-12 16:22:20 補充：
2.(1.5cm 3cm)X4cm/2=9cm2Source(s): 自己