Math, asked by sonyssn8ibkn, 1 year ago

The area of a circular field is 154 m2. Find the time taken by an athlate to complete 2 rounds if she is jogging at the rate of 5 km/hr. Ans is 63.36 seconds Correct or wrong

Answers

Answered by Anonymous

area of a circle =πr²
πr²=154m²
r=7m
circumference of a circle =2πr
2*22/7*7=44m
2 rounds will be 2*44=88m
speed =distance/time
time=distance/speed
time=63.36 Second

Previous Question

Next Question

Similar questions

Environmental Sciences, 9 months ago

How do you mean by work triangle...

Social Sciences, 9 months ago

किसी भी प्रदेश की भू-आकृति को समझने के लिए------------क्रियाओं के प्रभाव को जानना आवश्यक है । निम्न में से उचित शब्द द्वारा रिक्त स्थान की पूर्ति कीजिए...

Science, 9 months ago

For decorative plastering work following method used in PWD. a) Day's work method b) Approximate work method c) Rate list method d) Department method...

Biology, 1 year ago

Why is government of india imposing a ban on the use of polythene bags?suggest two alternatives so these bags and explain how this ban is likely to improve the environment.

Biology, 1 year ago

An active immune system forms many cells to the affected tissues to kill off the disease causing microbes. Identify the process and mention its local and general effects.

Biology, 1 year ago

What is the effect on the growth of the plants if the roots are cut off?

Science, 1 year ago

A wire is doubled on itself what is the new resistance if its original resistance is 16 ohm?

Physics, 1 year ago

Two physical quantities of which one is a vector and the other is a scalar having the same dimensional formula are- 1) work and energy 2) torque and work 3) Impulse and momentum 4) power and pressure Give the answer with solutiot...