In the given figure if :(i) a = 130° ; find b.(ii) b = 200 ; find a.(

1.	In the given figure if :(i) a = 130° ; find b.(ii) b = 200 ; find a.(iii) a = 5/3 right angle, find b
Answer» (i) From figure, a + b = 360° ⇒ 130° + 6 = 360 ⇒ 6 = 360°-130° ⇒ b = 230° (ii) From figure, a + b = 360° ⇒ a + 200° = 360° ⇒ a = 360° – 200° ⇒ a = 160° (iii) Here, a = 5/3 right angle = 5/3 x 90° = 150° a = 150° Here, a + b = 360° ⇒ 150° + b = 360° (∵a = 150°) ⇒ b = 360° -150° b = 210°

In the given figure if :(i) a = 130° ; find b.(ii) b = 200 ; find a.(iii) a = 5/3 right angle, find b

Answer»

(i) From figure,

a + b = 360°

⇒ 130° + 6 = 360

⇒ 6 = 360°-130°

⇒ b = 230°

(ii) From figure,

a + b = 360°

⇒ a + 200° = 360°

⇒ a = 360° – 200°

⇒ a = 160°

(iii) Here, a = 5/3 right angle

= 5/3 x 90° = 150°

a = 150°

Here, a + b = 360°

⇒ 150° + b = 360° (∵a = 150°)

⇒ b = 360° -150°

b = 210°