Question

. Δ LMN ~ Δ PQR, 9 x A (Δ PQR ) = 16 x A (Δ LMN). If MN = 15 then find QR.​

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

⇒MN=34×20[∵QR=20]