9156.24=4*3.14*r^2

Simple and best practice solution for 9156.24=4*3.14*r^2 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 9156.24=4*3.14*r^2 equation: 


Simplifying
9156.24 = 4 * 3.14r2

Multiply 4 * 3.14
9156.24 = 12.56r2

Solving
9156.24 = 12.56r2

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-12.56r2' to each side of the equation.
9156.24 + -12.56r2 = 12.56r2 + -12.56r2

Combine like terms: 12.56r2 + -12.56r2 = 0.00
9156.24 + -12.56r2 = 0.00

Add '-9156.24' to each side of the equation.
9156.24 + -9156.24 + -12.56r2 = 0.00 + -9156.24

Combine like terms: 9156.24 + -9156.24 = 0.00
0.00 + -12.56r2 = 0.00 + -9156.24
-12.56r2 = 0.00 + -9156.24

Combine like terms: 0.00 + -9156.24 = -9156.24
-12.56r2 = -9156.24

Divide each side by '-12.56'.
r2 = 729

Simplifying
r2 = 729

Take the square root of each side:
r = {-27, 27}

See similar equations:

| -4.8=9.6 | | 6(x-2)+6=0 | | 28-(2c+4)=2(c+7)+c | | 7234.56=4*3.14*r^2 | | 15x+4= | | 3-(5-2x)=7x-1 | | -3(2x+8)=24 | | 2y+5=3x | | 7X-15=5X+27 | | 16+3z=19 | | X^2+2x-5=-5 | | 16+3z=16 | | 5x-9-2x=6 | | 2Y=46 | | 4x-2=3x-7 | | 8x^3-27w^3=0 | | -20=3x-7-2x | | 6x-5=6x+2 | | 21x-18y=14 | | 7x+7=9x-1 | | 2x+3x+2=2x-7 | | 20x+1+15x+4= | | 2(2t-1)+t=4-1 | | 2(4x-4)=56 | | 6y-19=-14+7y | | 3.4(x)+3=4ln(2x) | | 2700=r(3)+2r(3) | | 2(9)-2x=12 | | 7x-30=8 | | 5h-10=4h | | 2x-5(x-2)=-7+4x+3 | | -3(5-15n)=15(3c-2) |

Equations solver categories