3 years ago

The circumference of a circle is 11 pi inches.

Mathematics

1 answer:

ser-zykov [4K]3 years ago

8 0

9514 1404 393

Answer:

30.25π square inches

Step-by-step explanation:

You can use the formula for area in terms of circumference:

A = C²/(4π)

A = (11π)²/(4π) = (121/4)π = 30.25π . . . square inches

_____

You may be expected to find the radius first:

C = 2πr ⇒ r = C/(2π) = 11π/(2π) = 5.5 . . . inches

Then use the area formula:

A = πr² = π(5.5 in)² = 30.25π in²

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3 years ago

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Answer:

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2 years ago

A baseball team played 154 regular season games. The ratio of the number of games they won to the number of games they lost was

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Answer:

Number of games won = 110

Step-by-step explanation:

Given:

Total games played = 154

The ratio of number of games won to number of games lost = $\frac{5}{2}$

Solution:

Let the number of games won be = $5x$

Thus, number of games lost = $2x$

The total games played can be given as = $5x+2x=7x$

Thus, we have:

$7x=154$

Dividing both sides by 7.

$\frac{7x}{7}=\frac{154}{7}$

∴ $x=22$

So, number of games won = $5\times 22 = 110$

7 0

3 years ago