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3 years ago

Which ratios are equal to 64 when the scale factor is 8? Select all that apply.

Mathematics

1 answer:

Luden [163]3 years ago

5 0

Answer:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

Step-by-step explanation:

Suppose that we have a cube with sidelength M.

if we rescale this measure with a scale factor 8, we get 8*M

Now, if previously the area of one side was of order M^2, with the rescaled measure the area will be something like (8*M)^2 = 64*M^2

This means that the ratio of the surfaces/areas will be 64.

(and will be the same for a pyramid, a rectangle, etc)

Then the correct options will be the ones related to surfaces, that are:

The scaled surface area of a square pyramid to the original surface area.

The scaled area of a triangle to the original area.

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We have to find the number of hours the Air Force plane flew before the cargo plane caught up.

Now, we know that, $\text { distance travelled }=\text { speed } \times \text { time }$

For air force plane $\rightarrow \text { distance travelled }=159 \mathrm{x} \text { time taken by air force plane }$

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3 years ago

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Anit [1.1K]

Answer:

$\Large \boxed{\sf \ \ 4\sqrt{a^2+b^2} \ \ }$

Step-by-step explanation:

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You can use Pythagoras in the 4 right triangles.

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