find the area of a circle whose radius is 4.2cm
Answers
Answered by
3
Radius = 4.2 cm
Area of circle = πr^2
Area = 22/7 x 4.2 x 4.2
= 55.4
Rythm14:
but im sure this is correct
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yeah
my solution's ans is also 55.4
yea it is correct
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Answered by
1
Answer:
Area=55.38
Step-by-step explanation:
ok
so we need to use formula for Area.
A=(pi)r^2 ==> 3.14x4.2*4.2=55.38
you use 3.14 only when it is given in question
otherwise you should use 22/7
ok
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