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?

a) 4 feet

b) 3 feet

c) 6 feet

d) 5 feet

Question

28 June, 23:07

+2

Answers (2)

Know the Answer?

Kelvin Newton · Answer 1

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

Bambi · Answer 2

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

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?a) 4 feetb) 3 feetc) 6 feetd) 5 feet