मराठी

The rational numbers 12 and –1 are on the opposite sides of zero on the number line. - Mathematics

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प्रश्न

The rational numbers `1/2` and –1 are on the opposite sides of zero on the number line.

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
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उत्तर

This statement is True.

Explanation:

Since, positive rational number and negative rational number are on the opposite sides of zero on the number line.

Hence, `- 1/2` and –1 are on the opposite sides of zero on the number line.

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पाठ 1: Rational Numbers - Exercise [पृष्ठ १८]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 8
पाठ 1 Rational Numbers
Exercise | Q 88. | पृष्ठ १८

संबंधित प्रश्‍न

Show the following numbers on a number line. Draw a separate number line for each example.

(1)`3/2 , 5/2 , -3/2`

(2)`7/5 , (-2)/5 , (-4)/5`

(3) `(-5)/8 , 11/8`

(4)`13/10 , (-17)/10`


The number `sqrt2` is shown on a number line. Steps are given to show `sqrt3` on the number line using `sqrt2`. Fill in the boxes properly and complete the activity.

Activity :

  • The point Q on the number line shows the number ______.
  • A line perpendicular to the number line is drawn through the point Q. Point R is at unit distance from Q on the line.
  • Right angled ∆ORQ is obtained by drawing seg OR. 

`l  ("OQ") = sqrt2` ,    `l("QR") = 1`

`therefore` by Pythagoras theorem,

`[l("OR")]^2  = [l("OQ")]^2 + [l("QR")]^2 `

= `square^2`+ `square^2` = `square` + `square`

= `square`

∴ l(OR) = `square`

Draw an arc with centre O and radius OR. Mark the point of intersection of the line and the arc as C. The point C shows the number `sqrt3`.


Evaluate:

`5/9 + 3/-4`


Evaluate:

`4/(-9) + 1`


Find the rational numbers represented by the question marks marked on the following number line


The points S, Y, N, C, R, A, T, I and O on the number line are such that CN = NY = YS and RA = AT = TI = IO. Find the rational numbers represented by the letters Y, N, A, T and I


Draw a number line and represent the following rational numbers on it

`15/(-4)`


The rational number `57/23` lies to the left of zero on the number line.


On a number line, `(-1)/2` is to the ______ of zero (0).


On a number line, `4/3` is to the ______ of zero (0).


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