Base

The base of the building is a circle with a diameter of 24 m. Calculate the circumference of a circular trench witch diameter is 19 cm wider than the diameter of the base.

Correct answer:

o =  76 m

Step-by-step explanation:

D=24 m x=19 cm m=19:100  m=0.19 m D2=D+x=24+0.19=1002419=24.19 m  o=π D2=3.1416 24.19=76 m



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