Question

The
radius
of
a
circle
is
1cm.What
is
its


area?


(a) π

cm




(b) π

cm2



(c) 2
π
cm




(d) 2π2

cm2​

Answer 1

Answer:

πcm² is your correct answer

Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

The radius of a circle is 1 cm . What is its area

(a) π cm

(b) π cm²

(c) 2π cm

(d) 2π² cm²

CONCEPT TO BE IMPLEMENTED

If radius of a circle is r unit

Then area of the circle is = πr² unit²

EVALUATION

Here it is given that the radius of a circle is 1 cm

So r = 1

Hence the area of the circle

$\sf{ = \pi \times {(1)}^{2} \: \: {cm}^{2} }$

$\sf{ = \pi \: \: {cm}^{2} }$

FINAL ANSWER

Hence the correct option is (b) π cm²

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