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lubasha [3.4K]
3 years ago
10

The diameter of a circle is 4cm. Find it area to nearewt tenth.​

Mathematics
2 answers:
DIA [1.3K]3 years ago
6 0

Answer:

12.6cm

Step-by-step explanation:

Natasha_Volkova [10]3 years ago
6 0

12.6 cm²

Area formula: (<em>A</em><em> </em>= πr²)

If the diameter is 4 cm.. then that would mean the radius is 2 cm because the radius is half of the diameter. So, we already know the radius.. we just have to find the circumference.

Circumference formula: (C = πd) or (C = 2πr)

Finding the circumference : 3.14 × 4 = 12.56 cm

So, we now have the radius and circumference.

Radius = 2 cm

Circumference = 12.56 cm

Finding the Area : 3.14 × 2 × 2 = 12.56 cm²

So, 12.56 rounded to the nearest tenth is 12.6 cm².

Hope this helped! :)

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