Which term is defined as the distance across the center of an object?

Which term is defined as the distance across the center of an object?

• A. Diameter
• B. Dilate
• C. Dilute
• D. Discrete

Answer: (A)

Diameter is the distance across the center of a circle or sphere, connecting two points on the boundary while passing through the center. In a circle it’s the longest possible chord and equals twice the radius, so if you know the radius, you can get the diameter by doubling it. You can also relate it to other measurements: the diameter is the circumference divided by pi, or the diameter can be found from area with d = 2√(A/π). The other terms don’t describe a distance across the center—dilate means to enlarge, dilute means to thin a solution, and discrete means separate or distinct rather than continuous.

Diameter is the distance across the center of a circle or sphere, connecting two points on the boundary while passing through the center. In a circle it’s the longest possible chord and equals twice the radius, so if you know the radius, you can get the diameter by doubling it. You can also relate it to other measurements: the diameter is the circumference divided by pi, or the diameter can be found from area with d = 2√(A/π). The other terms don’t describe a distance across the center—dilate means to enlarge, dilute means to thin a solution, and discrete means separate or distinct rather than continuous.