kdawg203
26.06.2020 •
Mathematics
An architect uses the origin as the center of dilation and dilates this figure by a scale factor of 2.5. The architect's
new drawing shows the scale and location of a larger pool that will be built at the same site. Draw the larger pool. Then compare the perimeters of the two
pools. Show or explain your work.
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Ответ:
To solve this problem you must apply the proccedure shown below:
1- You have the following information given in the problem above:
- The moon forms a right triangle with the Earth and the Sun during one of its phases.
- The angle between the line joining the Earth and the moon and the Sun and the moon is x degrees.
- The distance between the Earth and the Sun is y.
2- Therefore, you have:
d: distance between the moon and the sun
Sin(α)=opposite/hypotenuse
α=x
opposite=y
hypotenuse=d
3- Therefore, you have:
Sin(x)=y/d
d=ySin(x)
The answer is: The scientist can calculate the distance between the moon and the sun, by applying the trigonometric identity: Sinα=opposite/hypotenuse, where the opposite side is the distance between the earth and the sun (y), α is the acute angle between the line joining the Earth and the moon and the Sun and the moon (x degrees) and the hypotenuse is the distance that they need to calculate (d). Therefore, the need to solve for d.