# Which Circle Is Bigger? (High School)

Directions: Which circle is bigger?  Circle A with an area of 25 square units or Circle B with the equation x^2 + y^2 = 25

### Hint

How can you determine the radius of each circle?

Circle A has an area of 25 square units so its radius is about 2.8 units long.  Circle B has a radius of 5 units.  So, Circle B is bigger.

Source: Robert Kaplinsky

## Similar Triangles 2

Directions: Using the digits 0 to 9 at most one time each, create two similar …
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