PLEASE ANSWER
construct a triangle abc in which bc = 7cm , angle b = 60 and ab + bc = 10cm
construct a triangle abc in which bc = 6cm , angle b = 45 and ab - ac = 4.5 cm 
construct a triangle pqr in which qr = 8cm , angle q = 60 and pr - pq = 3cm 
construct a triangle xyz in which angle y = 30 , angle z = 90 and xy + yz + zx = 10 cm 
construct a right angled triangle whose base is 13cm and sum of its hypotenuse and other side = 18 cm