181.2408=4*3.14r^2

Simple and best practice solution for 181.2408=4*3.14r^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 181.2408=4*3.14r^2 equation: 


Simplifying
181.2408 = 4 * 3.14r2

Multiply 4 * 3.14
181.2408 = 12.56r2

Solving
181.2408 = 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.
181.2408 + -12.56r2 = 12.56r2 + -12.56r2

Combine like terms: 12.56r2 + -12.56r2 = 0.00
181.2408 + -12.56r2 = 0.00

Add '-181.2408' to each side of the equation.
181.2408 + -181.2408 + -12.56r2 = 0.00 + -181.2408

Combine like terms: 181.2408 + -181.2408 = 0.0000
0.0000 + -12.56r2 = 0.00 + -181.2408
-12.56r2 = 0.00 + -181.2408

Combine like terms: 0.00 + -181.2408 = -181.2408
-12.56r2 = -181.2408

Divide each side by '-12.56'.
r2 = 14.43

Simplifying
r2 = 14.43

Take the square root of each side:
r = {-3.798683983, 3.798683983}

See similar equations:

| 8x+4+2x+6=10 | | 2x+5+4x+3=8x+1 | | 10-189x=99 | | 25=x-24 | | (2n-5)=3n+10 | | 4j-9j+3=-9 | | 32+z=-13 | | 11-36x=12x-11 | | 2cos^2-3cos+1=0 | | -5(x-9)=2(x-8)-11 | | 0.084+3=3.8 | | A-b+a=c | | 2m-3-8m=33 | | 3y-6-5+y=3 | | 125+600+10.5x=19.50x | | t^2=2 | | 12a-14a=8a | | y=x^2+10+30 | | x+.5=.375 | | 5x^2-9x-24=0 | | 15+5x-3=46-2x | | k-1=12 | | 9x+12(-2)=36 | | 5y-4=9+8 | | .33+x=.833 | | x^3-5x-36x=0 | | 125+600+10.5=19.50x | | 6x^2+3x=108 | | x-0.66=-3 | | 10p=12 | | 125+600+10.5x=2500 | | 3x^2-7x-76=0 |

Equations solver categories