Question

In ∆ LMN, M-R-N , 2 MR= MN FindA(∆LMR)/A(∆LMN)??​

Answer 1

Given: OL=6cm & MN=6cm

To find: Area of ΔLMN

Let OM=x cm.

ar(LMN)=ar(LON)−ar(LOM)

=  

2

1

​

×6×(6+x)−  

2

1

​

×(6×(x))

=  

2

1

​

[36+6x−6x]

=  

2

36

​

=18cm  

2

 

ar(LMN)=18cm  

2