Mathematics: Which are rational numbers 3,5,1,9,4,8

------------------------------------------------------------Find Length of the square :------------------------------------------------------------Given that the area of the square is 32 cm²: Area = Length²------------------------------------------------------------Find Radius :------------------------------------------------------------Using Pythagorus Theorem to find the radius of the circle:a² + b² = c²------------------------------------------------------------Find Area of the semi-circle :------------------------------------------------------------...

Which are rational numbers 3,5,1,9,4,8 - id3519488337724, coltonduggan

Ответ:

naseersaad

05.02.2022

Mathematics

3 is rational, 5 is rational, 1 is rational, 9 is rational, 4 is rational, 8 is rational.

Step-by-step explanation:

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Ответ:

liz77717

28.06.2021

Mathematics

------------------------------------------------------------
Find Length of the square :
------------------------------------------------------------
Given that the area of the square is 32 cm²:

Area = Length²

$\text {Length =} \sqrt{32}$

------------------------------------------------------------
Find Radius :
------------------------------------------------------------
Using Pythagorus Theorem to find the radius of the circle:

a² + b² = c²

$( \sqrt{32})^2 + (\frac{ \sqrt{32} }{2} )^2 = ( \text {radius} )^2$

$(\text {radius} )^2 = 32 + \dfrac{32}{4}$

$(\text {radius} )^2 = 40$

$\text { Radius = } \sqrt{ 40 }$

------------------------------------------------------------
Find Area of the semi-circle :
------------------------------------------------------------
$\text {Area of the semi-circle = } \dfrac{1}{2} \pi r^2$

$\text {Area of the semi-circle = } \dfrac{1}{2} \pi ( \sqrt{40}) ^2$

$\text {Area of the semi-circle = } 20 \pi$

$\text {Area of the semi-circle = } 62.83 \ cm^2$

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Which are rational numbers 3,5,1,9,4,8

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