Answer:
A ). 12
Step-by-step explanation:
Answer:
4 is correct answer.
Step-by-step explanation:
That because it contains property of communicative. That is a×b=b×a.
Answer:
36
Step-by-step explanation:
Hello,
If 
it becomes
and 
So,
a = 1
b = 1
c = 17
d = 17
e = 0
Then a + b + c + d + e = 36
Thanks
Answer:
b║f
c║e
Step-by-step explanation:
Given a diagram,
Lines b, c, d, e, f and a transversal line 'a'.
Here line 'b' makes an angle with line 'a' is 89.5° and line 'f' makes an angle with line 'a' is also 89.5° (180°-90.5° = 89.5°)
Since corresponding angles are same.
So, line 'b' is parallel to line 'f'.
And line 'c' makes an angle with line 'a' is 91.5° and line 'e' makes an angle with line 'a' is also 91.5° (180°-88.5° = 91.5°)
Since corresponding angles are same.
So, line 'c' is parallel to line 'e'.
Therefore,
b║f
c║e
That's the final answer.
