Find the circumference A) whose radius is 3 cm B) whose diameter is 4 cm
| March 22, 2021 | education
Find the circumference:
a) with a known radius, we use the formula:
L = 2 π r,
Where:
L is the circumference;
r is the radius of the circle;
π ≈ 3.1416.
L = 2 x 3.1416 x 3 = 6.2832 x 3 ≈ 18.85 cm.
b) with a known diameter, we calculate by the formula:
L = π d,
Where:
L is the circumference;
d is the diameter of the circle;
π ≈ 3.1416.
L = 3.1416 x 4 ≈ 12.57 cm.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
