1.) What is the area of the circle shown below?
10cm
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Answer:
A = 78.5 cm²
Step-by-step explanation:
the area (A) of the circle is calculated as
A = πr² ( r is the radius )
here diameter = 10 cm , then r = 10 cm ÷ 2 = 5 cm , so
A = π × 5² = 25π ≈ 78.5 cm² ( to the nearest tenth )