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2 years ago

35 points! Find the the surface area of the cylinder in terms of pi.

Mathematics

2 answers:

love history [14]2 years ago

8 0

Answer:

SA = 96 $\pi$ m²

Step-by-step explanation:

Surface area of closed cylinder = 2 $\pi$ r² + 2 $\pi$ rh

where r is the radius and h is the height

Given:

r = 4
h = 8

SA = 2 $\pi$ (4)² + 2 $\pi$ (4)(8)

⇒ SA = 32 $\pi$ + 64 $\pi$

⇒ SA = 96 $\pi$ m²

abruzzese [7]2 years ago

3 0

Solution:

2πrh + 2πr² = Area of cylinder formula
Radius = 4 m
Height = 8 m

<u>Finding the surface area:</u>

2πrh + 2πr²
=> 2(π)(4)(8) + 2(π)(4²)
=> 64π + 2(π)(16)
=> 64π + 32π
=> 96π m²

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