मराठी

Chumki, Jhumri, and Imran need wire to make a fence. How much wire in all will the three need? - Mathematics

Advertisements
Advertisements

प्रश्न

Chumki, Jhumri, and Imran need wire to make a fence.

  • How much wire in all will the three need?
बेरीज

उत्तर

Total length of wire

= 26 + 24 + 26

= 76 m

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Area and its Boundary - Area and its Boundary [पृष्ठ १५३]

APPEARS IN

एनसीईआरटी Math - Magic [English] Class 5
पाठ 11 Area and its Boundary
Area and its Boundary | Q 9.4 | पृष्ठ १५३

संबंधित प्रश्‍न

The nearest star to our solar system is 4.29 light years away. How much is this distance in terms of parsecs? How much parallax would this star (named Alpha Centauri) show when viewed from two locations of the Earth six months apart in its orbit around the Sun?


Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):

 

the number of strands of hair on your head


Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):-

the number of air molecules in your classroom.


Write true or false.

Every measurement involves two things – a number and a unit.


What are the S.I. units of

  1.  mass
  2.  length
  3.  time and
  4.  temperature.

Write their names and symbols.


While measuring the length of an object using a ruler, the position of your eye should be


Length of one’s chest can be measured using metre scale.


Match the following.

1. Length kelvin
2. Mass metre
3. Time kilogram
4. Temperature second

Which line is longer? C or D? Measure each line. How good is your guess?


Guess whose tail is the longest. Now measure the tails. How good is your guess?


How many stamps can be placed along its length?


Now cut strips of equal sizes out of it. Using tape join the strips, end to end, to make a belt.

How long is your belt? _________


You can play this game on the ground. Make two squares of one square meter each. Divide your class into two teams. Ready to play!

  • Which team could make more children sit in their square? How many?

What are the materials needed to find the length of a banana?


What is the unit of measurements of very small lengths?


Length is ______.


To measure the distance of a planet from the earth, ______ method is used.


The radius of atom is of the order of 1 Å and the radius of nucleus is of the order of fermi. How many magnitudes higher is the volume of atom as compared to the volume of nucleus?


  1. The earth-moon distance is about 60 earth radius. What will be the diameter of the earth (approximately in degrees) as seen from the moon?
  2. Moon is seen to be of (½)°diameter from the earth. What must be the relative size compared to the earth?
  3. From parallax measurement, the sun is found to be at a distance of about 400 times the earth-moon distance. Estimate the ratio of sun-earth diameters.

Consider a sunlike star at a distance of 2 parsecs. When it is seen through a telescope with 100 magnification, what should be the angular size of the star? Sun appears to be (1/2)° from the earth. Due to atmospheric fluctuations, eye can’t resolve objects smaller than 1 arc minute.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×