Question

Taking π=3.14, find the perimeter and area of a circle whose radius is:
(I) 8cm (ii) 15cm (iii) 20cm​

Answer 1

$\huge{\mathcal{\orange{✓{\pink{\underline\purple{Qüêstìøñ}}}}}}$➡️

• Taking π=3.14, find the perimeter and area of a circle whose radius is:
• (I) 8cm (ii) 15cm (iii) 20cm

$\huge{\mathfrak{\blue{❥{\pink{\underline\green{ᴀ᭄ɴsᴡᴇʀ}}}}}}{\red{\:\star}}$

$\large{\bf{\pink{1. perimeter \: = \: 50.24}}}$

$\large{\bf{\red{1. area \: = \: 200.96}}}$

$\large{\bf{\blue{2. perimeter \: = \: 94.2}}}$

$\large{\bf{\green{2. area \: = \: 706.5}}}$

$\large{\bf{\purple{3. perimeter \: = \: 125.6}}}$

$\large{\bf{\orange{3. area \: = \: 1256}}}$

$\huge\mathfrak\fcolorbox{lime}{black}{\pink{\underline{\red{\underline\blue{eXplanation !}}}}}$

$\large\tt\fcolorbox{aqua}{lime}{\underline{Given :}}$

$\pi = 3.14$

$c = 2\pi \: r$

$a = \pi \: r {}^{2}$

$\large\fcolorbox{aqua}{aqua}{\underline{1. r=8cm}}$

$c = 2 \times 3.14 \times 8 = 50.24$

$a = 3.14 \times (8) {}^{2} = 3.14 \times 64 = 200.96$

$\large\fcolorbox{aqua}{aqua}{\underline{2. r=15cm}}$

$c = 2 \times 3.14 \times 15 = 94.2$

$a = 3.14 \times (15) {}^{2} = 706.5$

$\large\fcolorbox{aqua}{aqua}{\underline{3. r=20cm}}$

$c = 2 \times 3.14 \times 20 = 125.6$

$a = 3.14 \times (20) {}^{2} = 1256$

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$\large\mathbb\fcolorbox{lime}{black}{\blue{\underline\pink{THANK \ YOU }}}$

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