Hey!
We know Circumference = 2πr
Where,
r - radius of the circle.
Since it is given that d = 11mm
r = d/ 2
= 5.5 mm
= 0.55 cm
Therefore, Circumference = 2π × 0.55
= 3.455 cm
= 3. 46 cm
≈ 4 cm
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The 6% tax is: $2.1
Total:$24.15
Answer:
So with perimeter you need to sum up all the possible sides.
A rectangle has 4 sides, the two(horizontally) at the top are the same and the two vertically are also the same.
In order to model the system we do:
2(15)+ 2(L)=70
Alternatively the reduced form:
30+2L=70
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