Answer :
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We will assume the tunnel is a cylinder with radius r = 5 m and length l.
The formula for surface area of the playground tunnel is:
S = 2πrl
S = 2π*5*l
S = 10πl
And we also know that the area of the tunnel is S = 54 m^2 thus we have:
10πl = 54
π = 3.14
10*3.14*l = 54
The answer is 1.91 m
It is given:
S = 2 π r l
S = 36 m²
r = 3 m
l = ?
π = 3.14
So, let's just solve this:
36 = 2 · 3.14 · 3 · l
36 = 18.84 · l
⇒ l = 36 ÷ 18.84
⇒ l ≈ 1.91 m
It is given:
S = 2 π r l
S = 36 m²
r = 3 m
l = ?
π = 3.14
So, let's just solve this:
36 = 2 · 3.14 · 3 · l
36 = 18.84 · l
⇒ l = 36 ÷ 18.84
⇒ l ≈ 1.91 m