To find the height h of a dinosaur in a museum

, Amir placed a mirror on the ground 40 feet from its base.
Then he stepped back 4 feet so that he could see the top of the dinosaur in the mirror. Amir's eyes were
approximately 5 feet 3 inches above the ground. What is the height of the dinosaur? When the answer is
not a whole number, give the answer as a decimal.

Respuesta :

Answer:

55 feet

Step-by-step explanation:

5.5                                   4

                _            =        _

                H                    40

The height of the dinosaur is 52.5 ft.

We know that:

12 inches = 1 ft

So, 1 inch = 1/12 ft

or, 3 inches = 3/12 = 0.25 ft.

So the height of Amir is = 5 ft 3 inch = 5.25 ft.

Let the height of the dinosaur is = x.

So, the ratio is:

[tex]\frac{5.25}{x}=\frac{4}{40}\\x=5.25\cdot\frac{40}{4}\\x=52.5[/tex]

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