find the missing angles of the following polygons:
......
Attachments:

Answers
Answered by
8
Answer :-
- x = 120°
- y = 110°
- w = 65°
- z = 65°
Given :-
- A polygon
To Find :-
- missing angles of the polygon.
Solution :-
⇒ x + 60° = 180° [ linear pair ]
⇒ x = 180° - 60°
⇒ x = 120°
⇒ y + 70° = 180° = [ linear pair ]
⇒ y = 180° - 70°
⇒ y = 110°
⇒ x + y + w + z = 360° [ sum of all angles of a quadrilateral is 360° ]
⇒ 120° + 110° + w + z = 360°
⇒ 120° + 110° + z + z = 360° [ w = z ]
⇒ 230° + 2z = 360°
⇒ 2z = 360° - 230°
⇒ 2z = 130°
⇒ z = 130/2
⇒ z = 65°
Now
- w = z = 65°
Verification :-
⇒ w + z + y + x = 360°
⇒ 65° + 65° + 110° + 120° = 360°
⇒ 130° + 110° + 120° = 360°
⇒ 240° + 120° = 360°
⇒ 360° = 360°
Hence, verified !
Similar questions