Question

show that l parral and p parrel q ​

Answer 1

Answer:The measure of the angles a, b, c, d are 65°,115°,65°,115°

Step-by-step explanation:

here,

l is parallel to m and p is parallel to q.

then

(vertical opposite angle )

since , l ║ m and q is the transversal line then

(angle on the same side of the transversal )

65 +d = 180°

d = 180-65

d = 115°

now p ║q  and m is the transversal line

c +d = 180°(angle on the same side of the transversal )

c + 115° = 180°

c = 180-115

c = 65°

similarly

b +c = 180°

b + 65°= 180

b = 180-65 = 115°

hence ,

The measure of the angles a, b, c, d are 65°,115°,65°,115°

#Learn more:

Tp is a tangent to the circle with centre o.if angle toq=120degree,find the diameter if the circle when ot=10cm

Step-by-step explanation:

Answer 2

Answer:

here's ur answer dude

Step-by-step explanation:

cosx+cosy+cosα=0

cosx+cosy=−cosα

[cosC+cosD=2cos(

2

C+D

)cos(

2

C−D

)]

2cos(

2

x+y

)cos(

2

x−y

)=−cosα...(i)

sinx+siny+sinα=0

sinx+siny=−sinα

[sinC+sinD=2sin(

2

C+D

)cos(

2

C−D

)]

hope it helps