Question Details

Detailed explanation and options for the selected question.

If the radius of a circle is 7 cm, what is its circumference?

A. 22 cm

B. 44 cm

C. 21π cm

D. 14π cm

Explanation:

Circumference = 2πr = 2π×7 = 14π cm. Other options are incorrect.

Related Topics

How to Use Basic Identities for Hyperbolic Functions (sinh, cosh, tanh)

Revision Notes

How to Solve Polynomial Inequalities

Revision Notes

How to Use Sum and Difference Identities (Sine, Cosine, Tangent)

Revision Notes

How to Calculate the Mode of a Data Set

Revision Notes

How to Calculate the Surface Area of a Sphere

Revision Notes

How to Perform a t-Test (Two-Sample)

Revision Notes

How to Solve Radical Equations (Equations with Square Roots)

Revision Notes

How to Add and Subtract Rational Expressions

Revision Notes

How to Use Scientific Notation

Revision Notes

How to Use the Law of Cosines in Any Triangle

Revision Notes