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fgiga [73]
3 years ago
11

Find the area of the circle with the given radius or diameter. Use 3.14.

Mathematics
1 answer:
elena55 [62]3 years ago
4 0

Answer:

Step-by-step explanation:

If the radius, r, is given, then the area of the circle is A = πr².

If the diameter, d, is given, then the circle area is A = π(d/2)², or A = πd² / 4.

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The price have changed from $120 to $75. By how many
marysya [2.9K]

Answer:

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Step-by-step explanation:

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3 years ago
Help i have to know this by tomorrow 43.60 ÷ 20
aniked [119]
Answer is 2.18 
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6 0
3 years ago
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4. Find the distance between points C and D<br>Round to the nearest hundredth.​
Umnica [9.8K]

Answer:

Distance between C and D is √10 which is 3.16

Step-by-step explanation:

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3 years ago
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disa [49]

Answer:

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Step-by-step explanation:

7 0
3 years ago
How many sides does a polygon have if the sum of the measures of the interior angles is 3960
anastassius [24]

Answer: the polygon has 20 sides.

Step-by-step explanation:

The formula for determining the sum of the measure of the interior angles in a regular polygon is expressed as (n - 2) × 180.

if the sum of the measures of the interior angles is 3960

degrees. This means that

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Expanding the brackets by applying the distributive property, it becomes

180n - 360 = 3960

180n = 3960 - 360

180n = 3600

Dividing both sides by 180, it becomes

n = 3600/180

n = 20

6 0
3 years ago
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