# Foundations, part 8

Geometry Level 2

Comparing numerical values, which of the following is different from the rest?

1. The ratio of the circumference of a circle to its diameter.

2. The sum of the three angles of a plane triangle expressed in radians.

3. $$\dfrac{22}{7}$$.

4. The net volume of a hemisphere of unit radius, and a cone of unit radius and unit height.

For more, Try this set

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