# Circumference of Center Rectangle

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In the circumference of center O, ABCD is a rectangle, arc (AB) = 60º, the radious measeaure is 4 cm, ¿ what measure have the grey area?

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#### Solution Preview

Please see the attached file.

- 3 ) In the circumference of center O, ABCD is a rectangle, arc (AB) = 60º, the radius measure is 4 cm, what measure have the grey area?

a) 32 cm²

b) 16√3 cm²

c) 37√2

2 cm²

d) 40 cm²

e) not enough info

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#### Solution Summary

The measures of the grey area is determined for a rectangle arc. Circumference of centers are determined.

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