area of a circle is πx^2+6πx+9π. find radius
Answers
Answered by
7
We know,
Area of circle = πr²
πx² + 6πx + 9π = πr²
π(x² + 6x + 9) = πr²
x² + 6x + 9 = r²
x² + 3x + 3x + 9 = r²
x(x + 3) + 3(x + 3) = r²
(x + 3)(x + 3) = r²
(x + 3)² = r²
x + 3 = radius
I hope this will help you
(-:
Area of circle = πr²
πx² + 6πx + 9π = πr²
π(x² + 6x + 9) = πr²
x² + 6x + 9 = r²
x² + 3x + 3x + 9 = r²
x(x + 3) + 3(x + 3) = r²
(x + 3)(x + 3) = r²
(x + 3)² = r²
x + 3 = radius
I hope this will help you
(-:
Answered by
8
Hello friends!!
Here is your answer :
We know that,
Area of circle
Given,
According to question,
Using identity :
( a + b )² = a² + 2ab + b²
Therefore, Radius of circle = x + 3
Hope it helps you.. ^_^
#Be Brainly
Here is your answer :
We know that,
Area of circle
Given,
According to question,
Using identity :
( a + b )² = a² + 2ab + b²
Therefore, Radius of circle = x + 3
Hope it helps you.. ^_^
#Be Brainly
VijayaLaxmiMehra1:
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