Answer:
The last one -4÷0 cannot be answered
Step-by-step explanation:
Well the diameter is the line that cuts the circle in half, here you have 2 diameters MN and LN. Put only 2 radius which are connect to MN with P.
So there can only be 2 radius: PM and PN.
Looking at the options it seems it's segment PN
The equation is (assuming you meant the instead of two): T = 15c