Question

pls ans I will mark as the brainliest ​

Answer 1

first,r=22/3.14 second,r=33/3.14 so the thickness is first r-second r=3.5m

Answer 2

listen just use

$\pi \times 1$

just insert the values after multiplication sing before inserting half the value 44 which is 22 then

$\pi \times 22 \times 66$

$3.14 \times 22 \times 66$

after this please slove yourself

THANK YOU HOPE IT HELPS