Seudónimo
Seudónimo
23-04-2018
Mathematics
contestada
Match these. Please.
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Аноним
Аноним
23-04-2018
Radius 12 units, area = π(12)² = 452.16 unit²
Diameter 16.8 units, area = π(8.4)² = 221.5584 unit²
Radius 3.4 units, area = π(3.4)² = 36.2984 units²
Diameter 10 units, area = π(5)² = 78.5 units²
Answer Link
Supernova
Supernova
23-04-2018
Area of a circle: πr²
To find the area if you have the diameter, do 1/4πd².
1)
radius: 12 units
⇒ π12² =
452.16 square units
2)
diameter: 16.8 units
⇒ 1/4π16.8² =
221.5584 square units
3)
radius: 3.4 units
⇒ π3.4² =
36.2984 square units
4)
diameter: 10 units
⇒ 1/4
π10
² =
78.5 square units
Answer Link
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