gwd-10-18

mandaran · 发表于 2005-5-25 16:37:00

Q18:
The figure shows a square patio surrounded by a walkway of width x meters. If the area
of the walkway is 132 square meters and the width of the patio is 5 meters greater than
the width of the walkway, what is the area of the patio, in square meters?
A. 56
B. 64
C. 68
D. 81
E. 100

smzsmz · 发表于 2005-5-25 17:07:00

（x+5+x+x）^2-(x+5)^2=132

mandaran · 发表于 2005-5-26 14:49:00

谢谢

gwd-10-18

gwd-10-18

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