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vitfil [10]
2 years ago
14

The radius of a circle is doubled. How does the area change?

Mathematics
1 answer:
ra1l [238]2 years ago
8 0

Answer:

Area increases by a factor of 4

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr²

If the radius is doubled, that is r = 2r, then

A = π(2r)² = 4πr²

Hence the area has been increased by a factor of 4

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Alinara [238K]

Answer:

They are (6, 1) or (3, 2).

Step-by-step explanation:

The factor pairs of 6 are 1×6 and 2×3

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3 0
3 years ago
What fraction of a circle measures 20 deegres
Temka [501]
A circle is 360 degrees so 360 divided by 20=18 so 20 degrees is one 18th of a circle 
5 0
3 years ago
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How are observations different from inferences? (choose)
sergejj [24]

Answer:

b

Step-by-step explanation:

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3 years ago
The entry fee for the tournament is $50 per team. Each of the 16 teams can also get ice water in the dugout for each game for an
velikii [3]
If you divide 16 by 2 you get 8, so, 8 teams payed $50, while the other half payed $60.

Hope this helps.  ^_^


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5 0
3 years ago
A triangle has an area of 35 square inches. the length of one of the sides it 10 inches. what is the length of the perimeter? in
Serggg [28]
The perimeter would be about 34.4 because if you choose the bottom side to be ten, by multiplying 35 by 2 to get 70 you can divide by 10 to get 7. Since you know the height and width, you can use pythagorean theorem, a^2 + b^2 = c^2. Plug in the numbers you have 10^2+7^2=c^2. c^2=149, so if you square root 149 you will get a irrational number but when rounded you get 12.2- so that is one side multiply by 2 and get 24.4- and add 10 to get 34.4
7 0
2 years ago
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