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4 years ago

Select the correct answer from each drop-down menu.

Mathematics

2 answers:

kodGreya [7K]4 years ago

6 0

Answer:

Ratio of IH to AD would be 2:1.

Step-by-step explanation:

We have been given that graph of a circle, where point A is the center of the circle. We are asked to fill in the given blank using our given diagram.

We know that the line segment joining two endpoints on circumference of circle is known as chord of the circle. BC i chord of our given circle.

A chord that passes through the center of the circle is known as diameter of he circle. Chords IH and EF are diameters of our given circle.

We know that the line segment that joins the center of a circle to any point on the circumference of circle is known as radius of circle. AD is radius for our given circle.

We also know that the measure of diameter is twice the measure of radius. This means that ratio of diameter to radius is 2 to 1.

Since IH is diameter and AD is radius, therefore, ratio of IH to AD would be 2:1.

Savatey [412]4 years ago

3 0

Answer:

Second Choice ( AD, IH )

Step-by-step explanation:

Point A is the center of this circle.

The ratio of the lengths of ____ and ____ is 2:1

In the given diagram EF is the diameter of the circle.

BC is the chord of the circle. Diameter and chord length will vary.

AD is the radius of the circle. IH is the diameter of the circle.

Diameter of the circle IH is 2 times the radius AD

The ratio of the lengths of AD and IH is 2:1

Answer is option B

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For the rotation - 660°, find the coterminal angle from 0° < 0 < 360°, thequadrant and the reference angle.

guajiro [1.7K]

Given the angle:

-660°

Let's find the coterminal angle from 0≤θ≤360.

To find the coterminal angle, in the interval given, let's keep adding 360 degrees to the angle until we get the angle in the interval,

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Coterminal angle = -660 + 360 = -300 + 360 = 60°

Therefore, the coterminal angle is 60°.

Since 60 degrees is between 0 to 90 degrees, is is quadrant I.

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Also since it is in quadrant I, the reference angle is still 60 degrees.

ANSWER:

The coterminal angle is 60°, which lies in quadrant I, with a reference angle of 60°

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Step-by-step explanation:

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