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Chapter 1: Q12. (page 28)

Find the area of each circle. Round to the nearest tenth.

Short Answer

Expert verified

The area of the circle is 3.1km2.

Step by step solution

01

Step 1. Given information.

In the figure the diameter of the circle is 2 km.

02

Step 2. Concept used.

The area of a circle with radiusr is given by A=πr2.

03

Step 3. Calculations.

A=πr2=3.14×12=3.14×1=3.14

Rounding off to the nearest tenth, we get,

A=3.1km2

Thus, the area of the circle is 3.1km2.

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