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
Correct Answer: Option C
Explanation
Area of a circle (A) = πr2
Radius = 4cm
π = 3.142
A = 3.142 × (4)2
= 3.142 × 16
= 50.272
A = 50.3cm2 (1dp)
There is an explanation video available below.