Question

Please do question 8 this is ch-24 solution of right triangle

Answer 1

Hey mate ur answer is in the attachment above



I hope it will help you ☺

Answer 2

construction: draw DM perpendicular on AB and CN perpendicular on AB.

Proof: In ΔADM,

⇒cos∅60= AM/AD

⇒    1/2   =AM/20

⇒    2AM=20

⇒    AM=10cm

similarly,

NB=10cm

⇒AB=AM+NB+MN

⇒AB= 10+10+20

AB=40cm