2*3.14r^2=140

Simple and best practice solution for 2*3.14r^2=140 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 2*3.14r^2=140 equation:


Simplifying
2 * 3.14r2 = 140

Multiply 2 * 3.14
6.28r2 = 140

Solving
6.28r2 = 140

Solving for variable 'r'.

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

Divide each side by '6.28'.
r2 = 22.29299363

Simplifying
r2 = 22.29299363

Take the square root of each side:
r = {-4.721545682, 4.721545682}

See similar equations:

| 7+(x+25)= | | 2(y-4)=4y+10 | | v-5=-1 | | 5(-1x+8)=90 | | 5.4=a+3.3 | | (12x+2)=(7x+7) | | 44-66+65y+5=9 | | 228q=228 | | 90=35x+6 | | 3x-x-5=2(x+2)-9 | | 4x+15=11x | | 3x-x-5=2(x+2)-9 | | 2x=x+y+10 | | 7p+8=6p+17 | | 2n-3+4n=27 | | -9y=-177 | | 7(d+5d)-16d=0 | | 19x-5=5+17x | | 7(6d+5d)-16d=0 | | 40+18x=10 | | 25b^2-121f^2= | | 6y=y+4 | | (7x+6)(5x)=90 | | 5p+13.5=32.25 | | 2r-5-r=13+2r | | -7(4x-2)= | | -2(x-2)-4x=3(x+1)-9x | | 2x+-4=2(x-2) | | 11z^2+5r-9=0 | | 2(x+25)(2x-30)=180 | | .4x-7=11 | | -9(-6+k)=18 |

Equations solver categories