wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In a restaurant, WiFi signal has to be provided only to the deluxe class. Signal reaches each of the customer upto a distance of 21 m from the antenna and the total area for which signal to be provided is 231 m2. What is the angle (in degrees) at which the signal has to be spread over a sector by the antenna?


A

60

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B

90

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

45

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

180

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A

60


Given , Radius r = 21 m

Area of sector

=θ360 ×π×r2

231=22×212×θ7×360

θ =60


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Area of a Sector
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon