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Mathematics 8 Online
OpenStudy (anonymous):

Need help with this problem ... triangle ABC is similar to triangle DEF BR=RC ES=SF 1. if BC=24 EF=15 AR=x DS=x-16, find x 2. if ED=11 EF=12 DF=9 AC=20, find perimeter of ABC got 42.6 for #1 but doesnt really look right and 71 for 2 but not so sure

OpenStudy (anonymous):

OpenStudy (mathstudent55):

Your answer to 1. is correct.

OpenStudy (mathstudent55):

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OpenStudy (mathstudent55):

Your answer to 2. is also correct. Both of your answers are approximate, not exact.

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