Question

find the radius of a circle whose circumferance is 176 cm

Answer 1

Hiii.
Radius = ?
Circumference=176cm
$176 \times 7 \div 2 \times 22$
and you will get the answer

Answer 2

$2\pi \: r \: = 176 \\ \pi \: r \: = 88 \\ r \: = 88 \times 7 \div 22 = 4 \times 7 = 28$