Question

answer fast
emeegency....​

Answer 1

$\huge\red{Hey Mate}$

❤❤❤❤❤❤❤❤

In fig 1

DE || BC

This means ...

AD ÷ BD = AE ÷ EC

So

EC =( AE × BD ) ÷ AD

Put the values

EC = (1×3)÷1.5

EC = 3÷1.5

EC = 2 cm

Now

In fig 2 also

DE||BC

This means

AD÷BD = AE ÷ EC

AD = (AE × BD) ÷ EC

Put the values

AD = (1.8×7.2)÷5.4

AD = 2.4 cm

Hope this helped !

Answer 2

Answer:

Let us assume that 4−5  

3

​  

 be rational  

⟹4−5  

3

​  

=  

b

a

​  

 where a,bϵZ

⟹−5  

3

​  

=  

b

a

​  

−4

⟹  

3

​  

=  

5

4

​  

−  

b

a

​  

 

L.H.S = irrational number as  

3

​  

 is a irrational number.

R.H.S = rational number

as RHS



=LHS

Hence, our assumption is wrong and 4−5  

3 is a irrational number.