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just olya [345]
3 years ago
14

If the circumference of a circle measures 8 pi cm, what is the area of the circle in terms of pi?

Mathematics
1 answer:
Effectus [21]3 years ago
8 0

Answer:

803.84

Step-by-step explanation:

the formula for the area of a circle is A = π r2 which is pi times the radius squared.n in this case if the circumference is 8 cm then the radius would be half of the circumference which is 4. then you square 4 which is equal to 256. Then take 256 and multiply it by pi. 256 × 3.14 = 803.84. i hope this helped you.

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In a zoo, there are 5 times as many monkeys as there are bears, and the number of bears is 2 fewer than the number of elephants.
HACTEHA [7]

m = 5b

b = e - 2

e = 6


first, solve for the number of bears by replacing e with 6.

b = 6 - 2

b = 4


now do the same for the monkeys.

m = 5b

m = 5(4)

m = 20


check the answer if you wish. the zoo has 20 monkeys.

8 0
4 years ago
The ratio of three angles of a triangle is 1:2:3. Find the measurement of the angles
Snezhnost [94]

Answer:

all the angles add up to 180 degrees

So 180÷6=30

(i got 6 cuz 1+2+3)

so 1=30

2=30*2=60

3=30*3=90

     

8 0
3 years ago
The formula for the area A of a trapezoid is A=1/2(b1+b2)h, where b1 and b2 represents the lengths of the bases and h represents
Vsevolod [243]
The answer:  [B]:  h = 2A / (b1 + b2) .
__________________________________________________________
Explanation:

Given:  A = (½) * (b1 + b2) * h ; 
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→Multiply EACH side of the equation by "2", to get rid of the fraction, "<span>½";
</span>____________________________________________________________
  → 2*A = 2 *  (½) * (b1 + b2) * h ; 

  → 2* A = 1 * (b1 + b2) * h ;
 
  → 2A =  (b1 + b2) * h ; 
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→ Now, divide EACH side of the equation by: "(b1 + b2)" ; to isolate "h" on one side of the equation; 
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  →   2A  / (b1 + b2) =  [(b1 + b2) * h] / (b1 + b2) ;

  →   2A  / (b1 + b2) =  h ; ↔ h = 2A / (b1 + b2) ; which corresponds to:
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_____________________________________________________________
8 0
4 years ago
Question 24 of 25<br> What is the measure of R?
gavmur [86]
68°
Because the two sides are equal, then the angles will be as well
8 0
3 years ago
Read 2 more answers
Find the image of the given point under the given translation. P(-5.7) T(x,y) = (x + 5, y - 4)
egoroff_w [7]

9514 1404 393

Answer:

  P'(0, 3)

Step-by-step explanation:

  (x, y) ⇒ (x +5, y -4)

  P(-5, 7) ⇒ P'(-5+5, 7-4) = P'(0, 3)

6 0
3 years ago
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