Question

if diameter is half then new area will be ​

Answer 1

Answer:

let radius be 2r

area is

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

new radius is r

are is

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

area will also be half

m@rk @s BRAINLIEST @nswer ple@se

Answer 2

Answer:

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Decrease 4 times