1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard IX
Mathematics
Volume of Hemisphere
Find the surf...
Question
Find the surface area of a sphere of radius
(i)
10.5
cm (ii)
5.6
cm (iii)
14
cm
Open in App
Solution
(i)
r
=
10.5
cm
SA
=
4
π
r
2
=
4
×
22
7
×
10.5
10
×
10.5
10
=
88
×
15
×
105
100
=
1386
cm
2
(ii)
r
=
5.6
cm
SA
=
4
π
r
2
=
[
4
×
22
7
×
(
5.6
)
2
]
cm
2
=
[
88
7
×
5.6
10
×
5.6
10
]
cm
2
=
394.24
cm
2
(iii)
r
=
14
cm,
SA
=
4
π
r
2
=
4
×
22
7
×
14
×
14
=
2464
cm
2
Suggest Corrections
5
Similar questions
Q.
Find the surface area of a sphere of radius:
(i) 10.5 cm
(ii) 5.6 cm
(iii) 14 cm