Question

Please solve this question​

Answer 1

I used linear pair, alternate interior n corresponding angles property in this question

Answer 2

Answer:

Angle 1=75°

Angle 2=105°

Angle 3=75°

Angle8=105°

Step-by-step explanation:

Here l, m are parallel to each other and n is transversal

Given that angle 1 + angle 2 are in the ratio 5:7

We know that the sum of angles lying in the same line=180°

Let the angles are 5x,7x

So 5x+7x=180°

12x=180°

X=15

So angle 1 =5*15=75°

Angle 2 =7*15=105°

Angle 1 and Angle 3 are alternate angles

We know that alternate angles are equal

So Angle 3=75°

Angle 3 and Angle 7 are corresponding angles

Corresponding angles are equal

So Angle 7 =75°

We know that Angle 7 +Angle 8=180°

75°+Angle 8=180°

Angle 8 =105°

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