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The lens of a telescope has a radius of 1 foot. What is the lens's circumference?

Use 3.14 for ​.


Sagot :

Circumference = 2 x 3.14 x 12
C = 2pi r
1 ft = 12 inches

Answer:

Circumference = 2 x 3.14 x 12

C = 2pi r

1 ft = 12 inches

Step-by-step explanation: