The area of a circle of radius 4cm is equal to (Take π = 3.142 )
- 10.3cm2
- 15.7cm2
-
50.3cm2
- 17.4cm2
The correct answer is: C
Explanation
Area of a circle (A) = πr2Radius = 4cm
π = 3.142
A = 3.142 × (4)2
= 3.142 × 16
= 50.272
A = 50.3cm2 (1dp)
There is an explanation video available .