Mathematics: Surface area of sphare

Surface area of sphare - id7196880, sconner733

koshh4

30.01.2022

Surface area of sphere is what referred to as Total surface area or lateral surface area because here the surface is curved everywhere.

$\large{ \boxed{ \rm{ \orange{Surface \: area \: of \: sphere = 4\pi {r}^{2} }}}}$

Total surface area of other 3-D shapes:

Cuboid = 2(lb + bh + hl)Cube = 4s²Cylinder = 2πr(r + h)Cone = πr(l + r)Hemisphere = 3πr²

Lateral surface area of these shapes:

Cuboid = 2h(l + b)Cube = 6s²Cylinder = 2πrhCone = πrlHemisphere = 2πr²

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tdyson3p6xvtu

30.10.2020

6b+18

Step-by-step explanation:

4×b= 4b

4×3=12

2×b=2b

2×3=6

(combine like terms)

4b+2b=6b

12+6=18

Hope this helped!

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