3 years ago

Hi please help :)

Mathematics

1 answer:

Debora [2.8K]3 years ago

3 0

Hey mate

It is C. 0 because there is no b in the <span>equation</span>

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Answer:

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b. 415cm² (3 s.f.)

Step-by-step explanation:

Formulas (for easier reference):

Volume of cone: $\pi$ r² $\frac{h}{3}$

Volume of hemisphere: $\frac{2}{3}$ $\pi$ r³

Surface area of cone without base: $\pi$ rl

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Volume of toy = ( $\pi$ × 6² × $\frac{8}{3}$ ) + ( $\frac{2}{3}$ × $\pi$ 6³)

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