Answer:
Explanation:
To find:-
- The values of e , f and d .
Answer:-
We can see that angles e and 97° are vertically opposite angles. So they will be equal as vertically opposite angles are equal .
Hence here ,
→ e = 97°
Secondly e and f form linear pair , and the sum of linear pair is 180° . Hence here ,
→ e + f = 180°
→ 97° + f = 180°
→ f = (180-97)°
→ f = 83°
Same goes with d and 90° . They both form linear pair. So that ,
→ 90° + d = 180°
→ d = 180°-90°
→ d = 90°
These are the required values of the unknown angles.