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KCET 2024 Math Solved Paper
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© examsnet.com
Question : 56
Total: 60
If in two circles, arcs of the same length subtend angles
30
∘
and
78
∘
at the centre, then the ratio of their radii is
5
13
13
5
13
4
4
13
Validate
Solution:
θ
1
=
30
=
π
6
,
θ
2
=
78
=
π
180
×
78
=
13
π
30
W
K
T
θ
1
r
1
=
θ
1
r
2
r
1
r
2
=
θ
2
θ
1
=
13
π
30
π
6
=
13
×
6
30
=
13
5
© examsnet.com
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