English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

A ground is in the form of a circle whose diameter is 350 m. An athlete makes 4 revolutions. Find the distance covered by the athlete

Advertisements
Advertisements

Question

A ground is in the form of a circle whose diameter is 350 m. An athlete makes 4 revolutions. Find the distance covered by the athlete

Sum
Advertisements

Solution

Diameter of the ground d = 350 m

Distance covered in 1 revolution = Circumference of the circle

= πd units

= `22/7 xx 350  "m"`

= 22 × 50

= 1100 m

Distance covered in 1 rotation = 1100 m

Distance covered in 4 revolutions = 1100 × 4

= 4400 m

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Measurements - Exercise 2.1 [Page 28]

APPEARS IN

Samacheer Kalvi Mathematics - Term 2 [English] Class 7 TN Board
Chapter 2 Measurements
Exercise 2.1 | Q 6 | Page 28

RELATED QUESTIONS

In PSR, RTQ and PAQ are three semicircles of diameters 10 cm, 3 cm and 7 cm respectively. Find the perimeter of the shaded region. [Use π=3.14]


The inner circumference of a circular track is 220 m. The track is 7m wide everywhere. Calculate the cost of putting up a fence along the outer circle at the rate of j – 2 per metre. (Use π = 22/7)


An elastic belt is placed round the rim of a pulley of radius 5 cm. One point on the belt is pulled directly away from the centre O of the pulley until it is at P, 10 cm from O. Find the length
of the belt that is in contact with the rim of the pulley. Also, find the shaded area.


In the given figure, the side of square is 28 cm and radius of each circle is half of the length of the side of the square where O and O' are centres of the circles. Find the area of shaded region.


Saima wants to put a lace on the edge of a circular table cover of diameter 1.5 m. Find the length of the lace required and also find its cost if one meter of the lace costs ₹ 15. (Take π = 3.14)


Four cows are tethered at four corners of a square plot of side 50m, so that’ they just cant reach one another. What area will be left ungrazed.


In the given figure, the radius of the circle is 7 cm and m ( arc MBN) = 60°,
find  A(O - MCN). 

A sector of 56°, cut out from a circle, contains 17.6 cm2. Find the radius of the circle.


Find the diameter of the sphere for the following : 

Surface Area = 221. 76 cm2 


Find the area of a circular field that has a circumference of 396m.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×