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A building 84 ft high casts a 231-ft shadow. Sarah casts a 11-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?

A4 feet
B3 feet
C6 feet
D5 feet

Verified Answer :

apologiabiology

so 84 casts 231
then x casts 11
84/231=x/11
solve for x
mulitply both sides by 11
924/231=x=4
sarah is 4 feet

231/11 = 84/X => X = 11 * 84 / 231 = 4 = > Sara is 4 feet tall.

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