Question

HAIIII

PLZ ANSWER THIIS QUESTION
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The diameter of the larger circle is 12.5 cm. The diameter of the smaller circle is 3.5 cm.

What is the best approximation for the area of the shaded region?

Use 3.14 to approximate pi.

28.26 cm²
113.04 cm²
132.27 cm²
254.34 cm²

Answer 1

Answer:

Option 2 is the best answer; 113.04cm^2

Step-by-step explanation:

We are given two figures in the diagram, one which is small and the other which is big.

For us to find the area of the shaded region, we have to find the area of the bigger circle, and the area of the smaller circle. Subtract the area of the smaller circle from that of the bigger one as follows;

A=πr^2, A=[3.14×(6.25)^2] - [3.14×(1.75)^2]

A = 122.656250cm^2 - 9.616250cm^2

A = 122.66 cm^2 - 9.62cm^2

A = 113.04cm^2