Solve the Problem $\mathrm { r }$ Of a Circle of Known Area

question 73

Multiple Choice

Solve the problem.
-The radius $\mathrm { r }$ of a circle of known area $\mathrm { A }$ is given by $\mathrm { r } = \sqrt { \mathrm { A } / \pi }$ , where $\pi \approx 3.1416$ . Find the radius

• A) \(\mathrm { r } = 1.40 \mathrm { ft } , \mathrm { C } = 8.86 \mathrm { ft }\)
• B) \(\mathrm { r } = 1.40 \mathrm { ft } , \mathrm { C } = 8.80 \mathrm { sq } \mathrm { ft }\)
• C) \(\mathrm { r } = 1.96 \mathrm { ft } , \mathrm { C } = 12.32 \mathrm { ft }\)
• D) \(\mathrm { r } = 1.40 \mathrm { ft } , \mathrm { C } = 8.80 \mathrm { ft }\)

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Definitions:

Stimulus Generalization

The tendency for the conditioned response to be evoked not only by the conditioned stimulus but also by stimuli similar to the conditioned stimulus.

Gradual Acquisition

The slow and incremental process of obtaining or developing skills, knowledge, or abilities over time.

Extinction

In psychology, the gradual weakening and disappearance of a conditioned response. In biology, the permanent loss of a species.

Fixed-Ratio

A schedule of reinforcement where a response is reinforced only after a specified number of responses, commonly used in learning and behavior analysis.