Answers

2016-02-04T21:56:48+08:00
The answer is 90cm. The process is first find lenght which is two times 15cm, then multiply it by its width which is 10cm then multiply it by 3.After you get the answer,find by dividing its area with its width. Solution: (15)(2)=30(10)=300(3)=900-10=90
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