Question

pllllllllzzzzzzzz ans no. 3​

Answer 1

I n triangle DAL

DP:PL = AB : BL. ( By Thales. theoram)

AB = DC ( opposite sides of|| gm)

so

DP: PL= DC: BL

2) DP: PL= DC: BL

SO

PL: DP = BL : AB

Adding 1 both sides

we get

DL: DP = PL: AB. ( AB = DC)

DL: DP = AL : DC

Hence proved.