Question

Cabling to connect the lamp posts is to be done to supply power from the stage to all the posts. The cabling is to be done along the circumference of each circular arrangement. The length of the cable required to connect all the lamp posts is (a) $26960 \mathrm{~m}$ (b) $26400 \mathrm{~m}$ (c) $53920 \mathrm{~m}$ (d) $52800 \mathrm{~m}$

Name: Problem 24, Chapter 5: IIT-JEE Super Course in Mathematics
Uploaded: 2021-07-03T16:23:17-08:00
Duration: 1 min 38 s
Channel: Narayan Hari
Description: Cabling to connect the lamp posts is to be done to supply power from the stage to all the posts. The cabling is to be done along the circumference of each circular arrangement. The length of the cable required to connect all the lamp posts is (a) 26960 m (b) 26400 m (c) 53920 m (d) 52800 m

   Cabling to connect the lamp posts is to be done to supply power from the stage to all the posts. The cabling is to be done along the circumference of each circular arrangement. The length of the cable required to connect all the lamp posts is
(a) $26960 \mathrm{~m}$
(b) $26400 \mathrm{~m}$
(c) $53920 \mathrm{~m}$
(d) $52800 \mathrm{~m}$

IIT-JEE Super Course in Mathematics

Trishna Knowledge… 1st Edition

Chapter 5, Problem 24

Instant Answer

Solved by Expert Narayan Hari

07/03/2021

Step 1

The circumference of a circle is given by the formula $2\pi r$, where $r$ is the radius of the circle. Show more…

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Cabling to connect the lamp posts is to be done to supply power from the stage to all the posts. The cabling is to be done along the circumference of each circular arrangement. The length of the cable required to connect all the lamp posts is (a) $26960 \mathrm{~m}$ (b) $26400 \mathrm{~m}$ (c) $53920 \mathrm{~m}$ (d) $52800 \mathrm{~m}$

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Key Concepts

Circle Geometry

This concept involves understanding the properties of circles, including the use of the formula for circumference, which is calculated as 2? times the radius. It is fundamental in determining the length of curves or boundaries that form complete circles.

Circumference Calculation

This is the process of computing the perimeter of a circle using the formula C = 2?r. It is essential for problems where the distance around circular shapes needs to be determined, such as the total length of cabling required along circular arrangements.

Summation of Multiple Measurements

When dealing with more than one circular arrangement, the total required length is obtained by calculating the circumference for each arrangement and then summing them together. This concept involves applying series summing techniques to aggregate individual measurements into one total value.

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