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3 years ago

Find the circumference of the circle

Mathematics

2 answers:

lesya [120]3 years ago

7 0

Answer:

18.85

Step-by-step explanation:

the formula to finding the circumference of a circle is

2πr

the picture shows that you have the diameter, so lets take half of it :)

2π3

when this is plugged into the calculator, it comes out to be

18.85

you <em>should </em>round up to the tenth place by making it 18.9 ... however i think your teacher messed it up.

but that's alright, just put the answer as A, because i think that is what your teacher intended to be correct.

I hope this helped!!

stay safe!!

ehidna [41]3 years ago

3 0

Answer:

18.8 ft

Step-by-step explanation:

Formula for circumference of a cirlce is 2piR or 2D.

Since you have diameter you do 6 * pi which is 18.8.

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In a class there are 25 students 15 are boys what percentage are girls

tankabanditka [31]

Answer:

40%

Step-by-step explanation:

Total students = 25

Boys = 15

Girls = 25 - 15 = 10

Percent of girls = 10/25

Percent is out of 100.

=> 10/25 = x/100

=> Cross multiply

=> 25 * x = 100 * 10

=> 25x = 1000

=> 25x/25 = 1000/25

=> x = 40

So, 40% are girls

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Answer:

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Step-by-step explanation:

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The base of a triangle is 44. If the area is 242 square feet, then what is the height of the triangle in feet?

stich3 [128]

Hello!

$\large\boxed{ 11 ft}$

Recall that the area of a triangle is:

A = 1/2(bh) where:

b = base of the triangle

h = height of the triangle

Plug in the given values:

242 = 1/2(44h)

Simplify:

242 = 22h

Divide both sides by 22:

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