Question

plz answer both questions​

Answer 1

Answer:

1))

b = 87* {vertically opposite angle}

c = 180*-87* = 93* {linear pair}

a = c = 93* {vertically opposite angle}

2))

x = 3y

x+y=180*. {linear pair}

3y+y = 180*. {putting x = 3y}

4y = 180*

y = 45*

x= 3y = 3×45 = 135*

z=y {vertically opposite angle}

z=45*

r=x {vertically opposite angle}

r=135*