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OpenStudy (anonymous):
Can somebody please help, I'd be really thankful. http://gyazo.com/827ab5f3c09997cf6d5b74f78ed078c7
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OpenStudy (jziggy):
As you know one of the side lengths and that the triangles are similar you can easily construct a ratio. For the perimeter the ratio is L1/L2 or 15/9 which simplifies to 5/3. For the area the ratio is L1^2/L2^2 or 225/81 which simplifies to 25/9
OpenStudy (anonymous):
Thank you!
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