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3 years ago

"Quick question.

Mathematics

2 answers:

givi [52]3 years ago

8 0

Based on the given figure of a plate above, the inner and the outer rims are called CONCENTRIC CIRCLES. By definition, concentric circles are circles having the same or common centers. And in the figure, both the outer and the inner rims have a common center. In addition, t<span>he part between two </span>concentric circles<span> of different radii is called an annulus. Hope this is the answer that you are looking for.</span>

Eddi Din [679]3 years ago

6 0

Answer:

Step-by-step explanation:

The answer is concentric circles because the other options just don't make sense. Concentric secants, radius, and chords do not look like that. They have different meanings and also I took a test for FLVS and got it right I did a lesson on how it explains the meanings of each of the terms I just said and it does not match the explanation.

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Solve the right triangle ABC with right angle C, if B=30 degrees, and C = 10

iren2701 [21]

Answer:

The answer to your question is letter D

Step-by-step explanation:

We know that the sum of the internal angles in a triangle equals 180°.

So, B = 30°, C = 90° and A = ?

A + B + C = 180°

Substitution

A + 30 + 90 = 180

Solve for A

A = 180 - 30 - 90

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To find "b". use the trigonometric function sine

sin B = $\frac{opposite side}{hypotenuse}$

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To find "a" use the trigonometric function cosine

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