Question

In the given figure {l || m. Find the value of b-a.
(A) 10°
(B) 20°
(C) 15°
(D) 25°
Please do it is urgent
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Answer 1

Answer:

The value of b-a is 20

Option B is correct !!!!!!!

Step-by-step explanation:

b = 100° (alternate interior angle )

 

a + 100 = 180

a = 180 -100

a = 80

now, b-a = 100 -80 = 20

Answer 2

Answer:

B is the answer

opposite interior angles are same

So, 100 degrees= angle b

angle b=100 degrees

100 degrees=angle p

So,Angle p=100 degrees

angle p+angle a=180 degrees

100 degrees+angle a= 180 degrees

angle a= 180 degrees-100 degrees

angle a= 80 degrees

b-a=100-80

b-a=20 degrees