The area of a circle of radius 4cm is equal to ... - JAMB Mathematics 2024 Question
The area of a circle of radius 4cm is equal to (Take π = 3.142 )
A
10.3cm2
B
15.7cm2
C
50.3cm2
D
17.4cm2
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Correct Option: C
The area of a circle is given by the formula: \(A = \pi r^2\), where \(r\) is the radius of the circle. Given that the radius is 4 cm and \(\pi = 3.142\), the area is:
\(A = 3.142 \times 4^2 = 3.142 \times 16 = 50.272\) cm2. The closest option is 50.3 cm2.
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