Question

What is the area of circle K rounded to the nearest tenth? Use 3.14 for pie.

1. 4.4 in²
2. 5.9 in²
3. 6.2 in²
4. 8.8 in²

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Answer 1

option 3

Explanation:

the area (A) of a circle is calculated as

A = πr² ( r is the radius )

given diameter = 2.8 , then r = 2.8 ÷ 2 = 1.4 , then

A = 3.14 × 1.4² = 3.14 ×1.96 ≈ 6.2 in² ( to the nearest tenth )