If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
764.1504 = 3.14r2
Solving
764.1504 = 3.14r2
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '-3.14r2' to each side of the equation.
764.1504 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
764.1504 + -3.14r2 = 0.00
Add '-764.1504' to each side of the equation.
764.1504 + -764.1504 + -3.14r2 = 0.00 + -764.1504
Combine like terms: 764.1504 + -764.1504 = 0.0000
0.0000 + -3.14r2 = 0.00 + -764.1504
-3.14r2 = 0.00 + -764.1504
Combine like terms: 0.00 + -764.1504 = -764.1504
-3.14r2 = -764.1504
Divide each side by '-3.14'.
r2 = 243.36
Simplifying
r2 = 243.36
Take the square root of each side:
r = {-15.6, 15.6}
| 136.7784=3.14r^2 | | 49=5x-8+4x | | -4(4m-2)+3= | | -7(4x-4)+9=-28x+37 | | 1/2+3x=1 | | 3x-9=3(x+2) | | 11-6n=-49 | | y^2-y-16=0 | | w-3.9=4.9 | | 8.7m-3.1=4.1m+21.28 | | 21+x-14+9x= | | -50=10r | | -2x=6/2 | | 4(2x-9)=8x-36 | | 907.46=3.14r^2 | | 0.14(y-1)+0.08y=0.02y-0.4 | | 1519.76=3.14r^2 | | 12z^2+11z=15 | | -.5*32x^2+32x+12=24 | | 7b+26.8=3 | | (9y-5)/5=((y-9)/4)+9 | | 2(5x-10)=65 | | y=8/3x+5 | | (9y-5)/5 | | a=lwforq | | -2.7+8.6+(5.4)= | | (6y)*4y=2 | | sin(2x)/cos(x) | | 2x^3-5x^2+kx+8k=0 | | -18+(-16)= | | 91.5624=3.14r^2 | | 6a=3+3 |