About [tex]2078.20cm^3[/tex] chocolate will go into making wash sphere .
Step-by-step explanation:
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 :
⇒ [tex]Volume = \frac{4\pi }{3}(r_1^3-r_2^3)[/tex] .............(1)
According to question ,
[tex]r_1=8cm\\r_2=2.5cm[/tex]
Putting these values in equation (1) :
⇒ [tex]Volume = \frac{4\pi }{3}(8^3-2.5^3)[/tex]
⇒ [tex]Volume = \frac{4\pi }{3}(496.38)[/tex]
⇒ [tex]Volume = \frac{4(3.14) }{3}(496.38)[/tex]
⇒ [tex]Volume =2078.20cm^3[/tex]
Therefore , About [tex]2078.20cm^3[/tex] chocolate will go into making wash sphere .
Answer:
2080 cm³ (correct to 3sf)
Step-by-step explanation:
Volume = (4/3) × 3.14 × [8³ - 2.5³]
= 2078.156667 cm³
