diameter of a hemispherical toy is 56 . find its curved surface area, total surface area and volume
Answers
Answer:
Diameter of hemishpere =56
Its radius = d/2 = 56/2
Radius = 28.
T. S. A of hemishpere = 3πr²
= 3× 22/7×28×28
= 7392.
C. S. A of hemishpere = 2πr²
= 2×22/7×28×28
= 4928.
Volume of hemishpere = 2/3 πr³
=2/3× 22/7 ×28×28×28
= 45994.666
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Answer:
volume=45994 2/3 cm, CSA=4928 and Tsa =7392
Step-by-step explanation:
Hemisphere
d=56cm
r=d/2=56/2=28cm
- volume= 2/3πr^3
- = 2/3*22/7*28*28*28
- =21952*44/21
=965,888/21
=45994 2/3 cm
TSA=3πr^2
= 3*22/7,28*28
=784*66/7
=51744/7
= 7392cm
CSA=2πr^2
= 2*22/7*28*28
=44*784/7
=34496/7
= 4928cm