Question

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


area?


(a) π

cm




(b) π

cm2



(c) 2
π
cm




(d) 2π

2

cm2​

Answer 1

Answer:

area of circle =π*r*r

therefore if r= 1cm then area= π*1*1= π

Answer 2

Question -

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

Solution :-

formula used :- area of a circle = πr²

→ π(1)²

→ π × 1 × 1

→ π cm²

Answer :-

option (b) π cm²