Question

plz pl pllz help me plzzzzzz

Answer 1

tan alpha= p/b= 5/12
area of abc= 1/2*base*height
=》1/2*5*12
=》30
area of abc with ac as base=1/2×13*bd
=》13bd/2=30
=》13bd=60
bd=60/13
cd=25-60/13=265/13
sin theta=265/13*1/5=53/13