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katen-ka-za [31]
3 years ago
11

Pls answer a b and c

Mathematics
2 answers:
monitta3 years ago
5 0

Answer:

<u>Given</u>

  • r = 1.6 cm
  • h = 6.2 cm

a.

<u>Volume of the half-sphere:</u>

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

b.

<u>Volume of the cylinder:</u>

  • V = πr²h = 3.14*1.6²*6.2 = 49.8 cm³

c.

<u>Volume of the figure:</u>

  • 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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