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Hoochie [10]
4 years ago
5

What happens in a 90° clockwise/270° counterclockwise. rotation?*

Mathematics
2 answers:
Molodets [167]4 years ago
8 0

Answer:

When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.

Alexandra [31]4 years ago
8 0

Answer:

The formula is

P (x,y)---->P' (y, -x)

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erik [133]

Answer:

b = 159 m

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Step-by-step explanation:

Let’s start with getting the measure of angle B

Mathematically, since we have a right triangle , we have to subtract the given angle from 90 to get the other acute angle

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To get the value of a, we use the appropriate trigonometric ratio

a faces the angle 33, that makes it an opposite to that angle

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Mathematically , the relationship between the two is that trigonometrically, they are related by the sine which is the ratio of the opposite to the hypotenuse

so, we have it that;

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to get b, it is adjacent to the given angle

So with the hypotenuse, the ratio between it and the hypotenuse is the cosine

so;

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3 years ago
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