Bi- and tri- (two, three)
Bi-, tri-
Bi- means two; tri- means three.
A tricycle is easier to ride than a bicycle.
Bicycle
A cycle with two wheels.
Joseph rides his bicycle to school in Mysuru.
Triangle
A shape with three sides and three angles.
Draw a triangle with three equal sides.
Remember: Count them: bi-cycle has two wheels, tri-cycle has three. Careful: 'biweekly' can mean twice a week OR every two weeks.