wiz-icon
MyQuestionIcon
MyQuestionIcon
3
You visited us 3 times! Enjoying our articles? Unlock Full Access!
Question

If skating track of length 55 m, as shown in figure, subtends 150o angle at center of circle, find radius of circle.

A
11 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
14 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
21 m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
42 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 21 m
Given length of the arc = 55 m , angle subtended = 150°
Length of arc = Angle360o×2πr
Length of track = 150o360o×2×227×r
55 = 512×2×227×r
55×12×75×2×22 = r

r = 21 m
Radius of circle whose track is part is 21 m.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Length of arc
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon