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Chapter 2: Q13. (page 78)

Translate the following sentence into a formula:

鈥淔our times 蟺times the radius squared is the surface area of a sphere鈥�.

Short Answer

Expert verified

The formula is S=4蟺r2.

Step by step solution

01

Step 1. Given information.

The given sentence is:

The surface area of the sphere is the product of four times 蟺and the square of the radius.

02

Step 2. Mention the algebraic variables.

Consider the Surface Area of the sphere as S and the radius of the sphere be r.

03

Step 3. Write the formula.

Since the square of the radius is r2.

Therefore, the formula becomes:

S=4蟺r2

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