Question

area of a circle is increased by 22 CM square when its radius is increased by 1 cm find the original radius of the circle...........guys don't spam and please don't copy it from Google ​

Answer 1

$\huge\bold\pink\bigstar$$\huge{\overbrace{\underbrace{\purple{ℍoℓℓα!!!}}}}$$\huge\bold\pink\bigstar$

$\huge{\boxed{\boxed {\mathfrak{\pink{A}\orange{N}\red{S}\green{W}\pink{E}\blue{R}}}}}$

➖➖➖➖➖➖➖➖➖➖➖➖

let original radius be r.

Then, according to the question,

π(r+1)2−πr2π(r+1)2−πr2=22

=> π×[(r+1)2−r2]π×[(r+1)2−r2]=22

=> 227×(r+1+r)(r+1−r)227×(r+1+r)(r+1−r)=22

=> 2r+1=7 => 2r=6

r=6262=3 cm

➖➖➖➖➖➖➖➖➖➖➖➖

$\huge\pink{\mid{\underline{\overline{\tt The.. End}}\mid}}$

❤️❤️ℱ⌾ℒℒ⌾ᗯ ℳℰ❤️❤️

$<marquee>$

✔️✔️✔️ ⓂⒶⓇⓀ__ ⓂⒺ__ ⒶⓈ__ ⒷⓇⒶⒾⓃⓁⒾⒺⓈⓉ✔️✔️✔️