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3 years ago

Pls answer a b and c

Mathematics

2 answers:

monitta3 years ago

5 0

Answer:

Given

r = 1.6 cm
h = 6.2 cm

Volume of the half-sphere:

V/2 = 1/2*4/3*πr³ = 2/3*3.14*1.6³ = 8.6 cm³ (rounded)

Volume of the cylinder:

V = πr²h = 3.14*1.6²*6.2 = 49.8 cm³

Volume of the figure:

V = 8.6 + 49.8 = 58.4 cm³

Ede4ka [16]3 years ago

3 0

FORMULA:

Volume of hemisphere = 2/3πr³
Volume of cylinder = πr²h

ANSWER:

[a] Volume of half sphere = 2/3πr³

2/3 × 3.14 × (1.6)³
8.57cm³ or 8.6cm³ rounded.

[b] Volume of cylinder = πr²h

3.14 × (1.6)² × 6.2
49.8cm³

[c] Volume of whole figure = 8.6cm³ + 49.8cm³

58.4cm³

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