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Example1

Title: Circles

Grade Lesson s2-l1

Explanation: The best way to understand SAT-4 is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1 Example2 Example3

The area of a circle is 256 square units. Find its diameter.

Step: 1

The given area of a circle is 256 square units.

The formula for the size of a process is \$A = πr^2\$

Rearrange the formula to solve for the radius: \$r = sqrt(A/π)\$

Substitute the given area into the formula: \$r = sqrt(256/π)\$

\$r = sqrt((256)/3.14159)\$

\$r = sqrt(81.4081)\$

r = 9.02

D = 2r

\$D = 2 \times 9.02\$

D = 18.04

Explanation:

Here, the given data and used to find the diameter of the circle by the formula.