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OpenStudy (anonymous):
A 30-ft building cast a 42-ft shadow. Sarah cast a 7-ft shadow. the triangle formed by the building and its shadow is similar to the triangle formed by Sarah and her shadow. how tall is Sarah? A. 4 ft B. 6 ft C. 5 ft D. there is not enough info
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OpenStudy (anonymous):
42 - 30 = 12 12 / 3 = 4
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