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On a sunny day, a classmate uses indirect measurement to find the height of a building. The building's shadow is 12 ft long and your classmate's shadow is 4 ft long. If your classmate is 5 ft tall, what is the height of the building?

Respuesta :

leena

Answer:

15 feet tall.

Step-by-step explanation:

To find the height of a building, we can set up a ratio as shown:

[tex]\frac{4}{5}= \frac{12}{x}[/tex]

Cross multiply to begin solving for 'x':

4x = 60

Divide '4' by both sides:

[tex]\frac{4x}{4} = \frac{60}{4}[/tex]

x = 15 ft.

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