Question

The person is 6 feet tall and casts a

shadow of 3 feet. The building casts a
shadow of 20. Which ratio can be used to
calculate the height of the building?

Answer 1

Answer: 6/3 = x/20

Explanation:

Hi, to answer this question we have to analyze the information given:

The person is 6 feet tall and casts a shadow of 3 feet.

The ratio is: height of the person/ shadow length = 6/3

For a 20 ft shadow:

x /20

So:

Height of the person / shadow of the person= height of the building / shadow of the building

6/3 = x/20

Solving for x:

6/3 (20) = x

x = 40 feet

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