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प्रश्न
Show the number √5 on the number line.
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उत्तर
Draw a number line as shown in the figure. Let the point O represent 0 and point Q represent 2. Draw a perpendicular QR at Q on the number line such that QR = 1 unit. Join OR. Now, ∆OQR is a right angled triangle.
By Pythagoras theorem, we have
OR2 = OQ2 + QR2
= (2)2 + (1)2
= 4 + 1
= 5
∴ OR = √5
Taking O as the centre and radius OR = √5, draw an arc cutting the number line at C.
Clearly, OC = OR = √5
Hence, C represents √5 on the number line.
संबंधित प्रश्न
Show the following numbers on a number line. Draw a separate number line for the example.
`3/2 , 5/2 , -3/2`
Evaluate:
`5/9 + 3/-4`
Evaluate:
`5/(-11) + 0`
Find the rational numbers represented by the question marks marked on the following number line
Draw a number line and represent the following rational numbers on it
`(-8)/3`
Draw a number line and represent the following rational numbers on it
`(-17)/(-5)`
`-3/4` is smaller than –2.
The rational number `57/23` lies to the left of zero on the number line.
Write the following rational numbers in the descending order.
`8/7, (-9)/8, (-3)/2, 0, 2/5`
Find the odd one out of the following and give reason.
