non linear constrain to solve for Squential Quadratic Programing

Hi I'm trying to minimize the volume of an object with these non linear constraints. How can I put it in my code\

constraints

c(1)= L + R - 131.23; % height of tank

c(2) = 1224.303*RL(1)^2; % height of distance, fuel needed

c(3) = (RL(1)*RL(2))/(2*(RL(2)+RL(1)))- 0.25; % thickness of tank

this is the code

% NOTE: RL(1) is R and RL(2) is L.

V =@(RL) pi*RL(1).^3 + pi*RL(1).^2*RL(2);

Rb = [157,147];

% NOTE: 157<=R<=173; 147<=L<=180; Thus, Rb= [157,147]; and Lb = [173, 180];

Lb = [173, 180];

% No Other constraints are considered here-need to put the constraint

A = [];

b = [];

Aeq = [];

beq = [];

x0 = (Lb + Rb)/2;

RL = fmincon(V,x0,A,b,Aeq,beq,Lb,Rb);

R = RL(1);

L = RL(2);

fprintf('Found values: R = %f [ft] L = %f [ft] \n', [R, L])

[Dai Nguyen]