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valina [46]
3 years ago
6

The radius of circle is 6.5 centimetres. Asquare has the same are as this circle. The length of each side of square , in centime

tre is?
Mathematics
1 answer:
iris [78.8K]3 years ago
5 0
Since the square has the same area as the circle, it might help
if we look at the area of the circle first.

The area of any circle is      Area = (pi) x (radius)² .

Leave it in that form for just a second .  (Oh, this is going to be so easy . . .)

The area of a square is  (length of a side)² .

The problem says that the areas are equal.  So . . .

(length of each side)² = (pi) x (radius)²

Take the square root of each side of the equation:

Length of each side of the square = (radius of the circle) times ( √pi )

Length of each side = (6.5 centimeters) times ( √pi ) = <u>11.52 centimeters</u> (rounded)


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Find the ratio of x to y is 5y=3x
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Answer:

\frac{x}{y} = \frac{5}{3}

Step-by-step explanation:

given 5y = 3x ( divide both sides by 3 )

\frac{5}{3} y = x ( divide both sides by y )

\frac{5}{3} = \frac{x}{y}




5 0
3 years ago
Read 2 more answers
The perimeter of a rectangle is 150 cm. the length is 4 cm greater than the width find the width and length
Fudgin [204]

Let's call the width of our rectangle w and the length l. We can say l = w + 4, since the length is equal to 4 cm greater than the width.


Also remember that the perimeter of a rectangle is the sum of two times the width and two times the length, or P = 2l + 2w. To solve this problem, we can substitute in the information we know, as shown below:

150 = 2(w + 4) + 2w

150 = 4w + 8

142 = 4w

w = \frac{71}{2}


Now, we can substitute in the width we found into the formula for length, which is l = w + 4:

l = \frac{71}{2} + 4

l = \frac{79}{2}


The width of our rectangle is \boxed{\frac{71}{2} \,\, \textrm{cm}} cm and the length of our rectangle is \boxed{\frac{79}{2} \,\, \textrm{cm}}

8 0
3 years ago
Using the pie chart below, if 300 students were polled on their favorite ice cream flavor, how many more students preferred stra
Paladinen [302]
Since there are 300 students you have to use proportions to solve the percents. First for strawberry you need to set up a proportion such as x/300=30/100 to show you are trying to find 30%of 300. Then you must cross multiply so 300 times 30 and 100 times x. Then you have 9,000 and 100, so you divide 9,000 by 100 and then you get 90 which is the portion of kids who liked strawberry flavored ice cream. You should do the exact same thing for vanilla ice cream like this: x/300=29/100 but since you’re finding 29% you need to put a 29 over 100. Then you cross multiply and do 300 times 29 and do x times 100. Which makes you get 8,700 and 100, and then you divide 8,700 by 100 and get 87 for vanilla ice cream. Lastly you need to subtract 87 from 90 since it asked how many more students liked strawberry than vanilla: 90-87=

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3 0
3 years ago
Kenny signed up for a new iTunes program. Each day he can download 3 songs. If he downloads 3 songs a day how many will he have
WARRIOR [948]
In 15 days he would have downloaded 45 songs. In 40 days he would have downloaded 120 songs. 
7 0
3 years ago
Read 2 more answers
60 PTS, BRAINLIEST, 5-STAR, THANKS.
kakasveta [241]

Step-by-step explanation:

Add everything and then equate it to 360 and when you have found x, substitute it in A and B

5 0
1 year ago
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