In the given figurelines AB, CD and EFmeetat ‘O’. Find the values of x,y,z, u.
look at the picture below and answer the question
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GivEn:
- AB, CD, EF is a line which meet at O
- ∠BOD = 90°
- ∠DOF = 50°
- ∠FOA = u°
- ∠AOC = z°
- ∠COE = y°
- ∠EOB = x°
To finD:
- Value of x,y,z,u
Solution:-
Finding angle FOA :
Here, AB is a line and we know that angle on a line is always 180°
∴ ∠ AOB = 180°
Now,
∠AOB = ∠BOD + ∠DOF+∠FOA
➢180° = 90° + 50° + u
➢180° = 140° + u
➢ u = 180° - 140°
➢ u = 40°
∴ ∠ u = 40°
━━━✿━━━
Finding angle AOC :
Here, CD is line and ∠COD is 180°
Now,
∠COD = ∠DOF + ∠FOA+∠AOC
➢ 180° = 50° + 40° + z
➢ 180° = 90° + z
➢ z = 180° - 90°
➢ z = 90°
∴ ∠z = 90°
━━━✿━━━
Finding angle EOB :
Here, EF is a line and ∠EOF = 180°
Now,
∠EOF = ∠EOB +∠BOD+∠DOF
➢180° = x + 90°+ 50°
➢180° = x + 140°
➢x = 180° - 140°
➢x = 40°
∴ ∠x = 40°
━━━✿━━━
Finding angle COE :
Here, AB is a line and ∠ AOB = 180°
Now,
∠AOB =∠AOC +∠COE + ∠EOB
➢180° = 90° + y + 40°
➢180° = 130° + y
➢y = 180° - 130°
➢y = 50°
∴ ∠y = 50°
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