The formula of the area of a circle is :
You know that the area is 1256.
So :
Divide both sides by
:
<span> take the square root of both sides in order to obtain r :
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In short, the answer would be 20 (i have rounded).
Hope this helps !
Photon
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Answer:
-4 i think
Step-by-step explanation:
divide -12 by 3 to get -4
This is an example of division. 252/6=42. So 42 toys will go into each pinata.
Answer:
27+63=90
9(3+7) is the same as 27+ 63
We know that
[area of a regular hexagon]=6*[area of one <span>equilateral triangle]
</span>210.44=6*[area of one equilateral triangle]
[area of one equilateral triangle]=210.44/6-----> 35.07 cm²
[area of one equilateral triangle]=b*h/2
h=7.794 cm
b=2*area/h------> b=2*35.07/7.794------>b= 9 cm
the length side of a regular hexagon is 9 cm
<span>applying the Pythagorean theorem
</span>r²=h²+(b/2)²------>r²=7.794²+(4.5)²------> r²=81--------> r=9 cm
<span>this last step was not necessary because the radius is equal to the hexagon side------> (remember the equilateral triangles)
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the answer is
the radius is 9 cm
