which measures are = to r = 4 d = 6 A = 36π C = 18π
To clarify, the measures of what: a circle, a rectangle, or a cylinder?
If all these measures are related to a circle, the following can be derived:
r = 4, meaning the radius of the circle is 4 units
d = 6, meaning the diameter of the circle is 6 units (which is twice the radius)
A = 36π, meaning the area of the circle is 36π square units
C = 18π, meaning the circumference of the circle is 18π units
In a circle:
- The diameter (d) is twice the radius (r), so d = 2r
- The area (A) of a circle is given by the formula A = πr^2, where r is the radius, so to find the area given the radius, we substitute r = 4 into the formula: A = π(4)^2 = 16π. However, the given value is A = 36π, which implies there might be a mistake in the provided information.
- The circumference (C) of a circle is given by the formula C = 2πr, where r is the radius, so for r = 4, C = 2π(4) = 8π. Similarly, the provided value of C = 18π could be erroneous based on the given radius.
Please verify the provided values, or specify the shape you are referencing for a more accurate answer.