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In Mathematics / Middle School | 2014-08-12

The base of a lampshade is in the shape of a circle and has a diameter of 13 cm. What is the circumference, to the nearest tenth of a cm, of the base of the lampshade? (Use 3.14 for π.)

Asked by Jukich872

Answer (2)

This whole problem is only about a circle. Let's not get confused by the rest of the lampshade.
The circumference of any circle is (pi) times (the diameter) .
For this circle, it's (pi) times (13 cm).
They told us what to use for (pi), so it's (3.14) x (13 cm) = 40.82 cm
and that's all there is to it.

Answered by AL2006 | 2024-06-10

The circumference of the base of the lampshade, using the formula C = π × d , is calculated as 40.82 cm and rounded to 40.8 cm .
;

Answered by AL2006 | 2025-05-19

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