Question

What is the area of a circle whose circumference is 44 cm?​

Answer 1

⠀⠀ıllıllı uoᴉʇnloS ıllıllı

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Answer:

• Area of a circle = 154 cm²

Given:

• Circumstance is 44 cm.

Need To Find:

• Area of a circle = ?

Explanation:

Formula used here:

• Circumference of a circle = 2πr

From the question,

2πr = 44

Or, r = 22/π

Now, area of circle = πr² = π × (22/π)²

So, area of circle = (22×22)/π

= 22 × 7 = 154 cm²

• Hence, the area of a circle is 154 cm².

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$