A building 64 ft high casts a 288-ft shadow. Sarah casts an 18-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. 5 ft

B. 3 ft

C. 6 ft

D. 4 ft

Question

5 December, 21:57

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Hudson Shea · Answer 1

s/18=64/288 multiply both sides by 18

s=1152/288

s=4 ft

So Sarah is four feet tall.

A building 64 ft high casts a 288-ft shadow. Sarah casts an 18-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. 5 ftB. 3 ftC. 6 ftD. 4 ft