Question

represent 8/5 and root 20 on number line

Answer 1

Answer:

Step-by-step explanation:

Mark it as brainiest answer

Answer 2

Represent root 20 on number line

PYTHAGORAS' THEOREM

A theorem in geometry: the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.

FORMULA

The Pythagoras theorem equation is expressed as, c2 = a2 + b2

According to the question,

We know Pythagoras’ theorem as

$c^{2} = a^{2} + b^{2}$

$c = \sqrt{a^{2} + b^{2} }$

Nearest perfect square less than square root(20) is 16

let c be the number which we want to plot on number line

then $c = \sqrt{20}$

then ,

$c = \sqrt{a^{2} + b^{2} }$

$\sqrt{20} = \sqrt{4^{2}+b^{2} }$

so b = 2

So to draw square root(20) on number line follow the steps :-

Consider name of 0 as point O.

• Mark a point on 4 units on right side of number line. Mark the point as A.
• Draw a segment of 2 units from point A perpendicular to number line with the help of protractor. Mark point as B.
• Join points O and B.
• Now the length of OB is square root(20) by Pythagoras’ theorem.
• Put compass on OB and cut the arc on number line mark it as point C.
• Congratulations.. you have represented root(20) on number line which is nothing but seg OC.

Represent  8/5 on number line

According to the question,

Step-by-step explanation:

To represent the given data in the number line, the data is in fractional form .

   By simplifying them we get,

                  8/5 = 1.6

               

Now to represent this rational number on the number line

• draw a line
• mark a point 0 at the  center to represent 0
• mark the negative integers to the left and positive to right

Now the picture below is the visual representation of the data

#SPJ2