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nexus9112 [7]
2 years ago
13

The diameters of a circle is 7m. Find its area to the nearest tenth?? Help please

Mathematics
2 answers:
Lady bird [3.3K]2 years ago
8 0

Area =\pi r^{2}

The diameter is double the length of the radius

7 ÷ 2 = 3.5

3.5 × 3.5 = 12.25

12.25\pi = 38.4845100064751

38.4845100064751 rounded to the nearest tenth is 38.5

liubo4ka [24]2 years ago
7 0

Answer:

A = 38.5 sq meters

Step-by-step explanation:

A = πr²

since diameter is 7, then radius is 7/2

A = π(7/2)²

A = 38.48

A = 38.5 rounded to nearest tenth

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