R S Aggarwal Solutions for Chapter: Mensuration, Exercise 5: EXERCISE 20E

Find the circumference of a circle whose radius is $28 \mathrm{cm}$.

Find the circumference of a circle whose radius is $1.4 \mathrm{m}$.

Find the circumference of a circle whose diameter is $35 \mathrm{cm}$.

Find the circumference of a circle whose diameter is $4.9 \mathrm{m}$.

Find the circumference (in cm) of a circle whose radius is $15 \mathrm{cm}$. [Take $\mathrm{\pi }=3.14$]

Find the radius of the circle whose circumference is $57.2 \mathrm{cm}$.

Find the diameter of the circle whose circumference is $63.8 \mathrm{m}$.

The hour and minute hands of a clock are $4.2 \mathrm{cm}$ and $7 \mathrm{cm}$ long respectively. Find the sum of the distances covered by their tips in$1$day.