The answer is the last one because:
- One has three sides and the other has four which doesn't makes it equal.
- One has three vertices and the other has four vertices.
- Obtuse is an angle greater than 90° but less than 180°, so it doesn't have an obtuse angle.
- Yes, it has one right angle each.
UHhHh, B? That should be correct... but uhh, I’m an idiot.
This was due to the Czar Nicholas II, who led more of a dictatorship. In 1917, people rebelled, so the Czar stepped down.
By reducing the need for fossil fuels through the use of the ethanol biofuel.