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3 years ago

9

If an airplane in a 1 in. : 4 ft. scale drawing is 5 in. long, how long is the actual airplane? Use proportions to solve the pro

blem and show all work. Provide a proper label with your answer.

1 answer:

Lunna [17]3 years ago

4 0

Answer:

20ft

Step-by-step explanation:

20ft is the answer because you would do 4 x 5 = 20, since the scale factor is 1in : 4ft

Hope this helped :)

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mario62 [17]

Step-by-step explanation:

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⇒ $V = \frac{1}{3}\pi (8)^{2}(h)$

As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height.

⇒ $a^{2} + b^{2} = c^{2}$

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⇒ $h = \sqrt{20^{2} - 8^{2}}$

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⇒ $V = \frac{1}{3}\pi (8)^{2}(4\sqrt{21})$

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⇒ $V = \frac{1}{3}lwh$

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