Question

if a ,b, c and d are four angles of a quadrilateral such that a = 2 b ,b = 2 c and C equals to 2D then the value of D is

Answer 1

a  = 2b

∴ a : b = 2: 1

b = 2c

∴ b : c =2 : 1

c = 2d

∴ c : d = 2 : 1

so, a : b  : c : d = 8 : 4 : 2 : 1

sum of angles of a qua. = 360°

⇒ 8x + 4x + 2x +x = 360

⇒ 15x = 360

∴ x = 24

Angle d = x°° = 24°

ok

I hope it will help u.

thank u

Answer 2

Answer:

Thanks Shristi For Answering This Question