Question

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


area?


(a) π

cm




(b) π

cm²
(c) 2
π
cm




(d) 2π²cm²​

Answer 1

Question:-

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

• π cm
• π cm²
• 2π cm²
• 2π² cm²

Solution:-

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࿊ Here, the question has given us the radius of the circle that is 1 cm respectively. Now, the question has asked us to find out the area of the circle. So, to find the area of the circle we need to aply the formula of area of circle and we will get the answer.

ANSWER:-

◈ The area of the circle is 3.14 cm². Correct option is B.

GIVEN:-

➔ Radius of the circle = 1 cm

TO FIND:-

➙ Area of the circle = ?

FORMULA:-

➲ Area of circle = πr²

Where,

• π = 3.14
• r = radius

SOLVING BY APPLYING THE FORMULA:-

➔ Radius of the circle = 1 cm

➲ Area of circle = πr²

⇝ Area = 3.14 × 1 × 1

⇝ Area = 3.14 × 1

⇝ Area = 3.14 cm²

Thus, we got the answer. Area of the circle is 3.14 cm².

As, the value of π is 22/7 or 3.14 here the 2nd option that is π cm² is correct because the answer is the value of π. So, the correct answer is B [π cm²].

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