The lens of a telescope has a radius of 4 feet what is the lens circumference use 3.14
The formula for the circumference of a circle is:
C = 2πr
Where C is the circumference, π is pi (approximately 3.14), and r is the radius of the circle.
Using this formula, we can plug in the given radius of 4 feet:
C = 2π(4)
C = 8π
Approximating π to 3.14, we get:
C ≈ 8(3.14)
C ≈ 25.12 feet
Therefore, the lens circumference of the telescope is approximately 25.12 feet.
To find the lens circumference, we can use the formula for the circumference of a circle:
Circumference = 2πr
Where:
- Circumference is the lens circumference
- π (pi) is a mathematical constant approximately equal to 3.14
- r is the radius of the lens, which is 4 feet.
Substituting the values into the formula, we have:
Circumference = 2 × 3.14 × 4
Circumference = 25.12 feet
Therefore, the lens circumference is 25.12 feet.