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Talja [164]
3 years ago
9

Hollow spheres with a radius of 8 cm whose shell is 2.5 cm thick. About how much chocolate will go into making wash sphere?

Mathematics
2 answers:
krek1111 [17]3 years ago
8 0

Answer:

2080 cm³ (correct to 3sf)

Step-by-step explanation:

Volume = (4/3) × 3.14 × [8³ - 2.5³]

= 2078.156667 cm³

Nonamiya [84]3 years ago
3 0

About 2078.20cm^3 chocolate will go into making wash sphere .

<u>Step-by-step explanation:</u>

Here we have , Hollow spheres with a radius of 8 cm whose shell is 2.5 cm thick.  We need to find  About how much chocolate will go into making wash sphere .Let's find out:

Basically we need to find the volume of hollow sphere , We know that volume of hollow sphere is :

⇒ Volume = \frac{4\pi }{3}(r_1^3-r_2^3)            .............(1)

According to question ,

r_1=8cm\\r_2=2.5cm

Putting these values in equation (1) :

⇒ Volume = \frac{4\pi }{3}(8^3-2.5^3)

⇒ Volume = \frac{4\pi }{3}(496.38)

⇒ Volume = \frac{4(3.14) }{3}(496.38)

⇒ Volume =2078.20cm^3

Therefore , About 2078.20cm^3 chocolate will go into making wash sphere .

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