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- Chapter 3- Compound Interest [Using Formula
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- Chapter 7- Indices [exponents]
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- Chapter 28- Distance Formula

Draw a line segment of length √𝟓 cm.

Answer:

We know that \sqrt{5}=\sqrt{2^{2}+1^{2}}

Which relates to: Hypotenuse= \sqrt{\text { Side } 1^{2}+\text { Side } 2^{2}} \text { [Pythagoras theorem] }

Hence, Considering Side 1=2 and Side 2 =1,

We get a right angled triangle such that:

∠𝐴=90°, AB=2cm and AC=1cm

"hello students welcome to lido learning
today we are going to do the question
which is on the screen
draw a line segment of length under root
5 centimeter
now we know that under root 5 is an
irrational number
so we cannot use a ruler or a scale to
draw a line of this
length so what are we going to do we are
going to use
the pythagoras theorem in mathematics to
draw this
line so let us see how we can use this
theorem
so we know that under root of 5
whole square is equal to 2 whole square
plus 1 whole square now if you remember
the right angle triangle
this is the right angle triangle and
this is what we can use
to draw a length
now pythagoras theorem is applicable
on a right angle triangle now using this
equation we can see that the hypotenuse
of any right angle triangle the whole
square of it
is equal to the sum of the squares
of the length and the
base of the right angle triangle now
using this
we can say that's if at all we can
create a right angle triangle of this
nature then the length
this length is going to be the size
under root of 5 centimeter
so this is how we can do this question
and draw a line of under root 5
centimeter
if you have any concerns please message
below this
video and subscribe to this channel
thank you"

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