Supplen\mentary ex.8
2007-02-09 3:47 am
In the figure, OABC is a rectangle of perimeter 12 units and OC=0.5OA. Find the coardinates of A, B and C.
回答 (1)
2007-02-09 3:57 am
✔ 最佳答案
Let y=OC,2y=OA2(y+2y)=12
6y=12
y=2
Therefore OC=2 units
OA=4 units
O=O(0,0)
A=A(4,0) or A(0,4)
B=B(4,2) or B(2,4)
C=C(2,0) or C(0,2)
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