Draw a circle with radius $3$$\mathrm{cm}$.

Find the perimeter of the following figure in $\mathrm{m}$.

Find the perimeter of the following figure in $\mathrm{m}$.

Find the perimeter of the following figure in $\mathrm{cm}$.

Find the perimeter of the following figure in $\mathrm{cm}$.

Find the perimeter of the following figure in $\mathrm{m}$.

Find the perimeter of the following figure in $\mathrm{m}$.

Find the perimeter of the triangle whose sides are: $16 \mathrm{cm},16 \mathrm{cm},16 \mathrm{cm}$. If the answer is $K \mathrm{cm}$ , then write the value of $K$.

Find the perimeter of the triangle whose sides are: $18 \mathrm{cm}, 20 \mathrm{cm}, 20 \mathrm{cm}$. (Calculate the perimeter in centimetres)