Question

PLZZ ANSWER IT PLZX FRIENDS

Answer 1

Answer is 90 by interior angle

Answer 2

Answer:

Step-by-step explanation:

given:∠5=∠4 &∠6=∠7

l is parallel to m

To Find :- ∠8

solution:- it is given that ∠5=∠4 & ∠6=∠7..........A

since l is parallel to m

therefor ∠5+∠4+∠7+∠6=180°     (the corresponding parallel angles sums up to 180°)

now ∠5+∠5+∠6+∠6=180°.................{from A}

    2(∠5+∠6)=180°

       ∠5+∠6=90°...............................B

     ∠5+∠6+∠8= 180°...........(A.S.P pf triangles)

    90°+∠8=180°........................from B

    ∠8=180°-90°

    ∠8=90°