Question

∆ LMN ~∆PQR,9×A(∆PQR)= 16×A(∆LMN) if QR= 20, then find MN​

Answer 1

Answer:

Given:

∆LMN ~ ∆PQR

9 × A (∆PQR ) = 16 × A (∆LMN)

Consider, 9 × A (∆PQR ) = 16 × A (∆LMN)

A(∆LMN)A(∆PQR)=916

⇒MN2QR2=3242

⇒MNQR=34

⇒MN=34×QR