Question

if l||m Angle1=2x+y ,angle4=x+2y and angle6 =3y +20 then finf angle 7 and angle 8​

Answer 1

Answer:

<5=70

<5+<8=180 since linear pair

70+<8=180

<8=180-70=110

<5=<1=<3=<7=70

<8=<4=<2=<6=110

Step-by-step explanation:

Let the angles of one triangle be angle 1,angle 2,and angle 3.

Ans angles of other triangle be angle 4,angle 5, and angle 6.

According to the property of measures of angles of triangle.

angle 1+ angle 2+ angle 3=180°.........(1)

also,

angle 4+ angle 5+ angle 6=180°..........(2)

adding eq. (1) and (2)

angle 1+angle 2+ angle 3+ angle 4+ angle 5+ angle 6=180° + 180°

angle 1+ angle 2+ angle 3+ angle 4+ angle 5+ angle 6 = 360°