Question

Please answer these class 7 maths interesting geometry questions

Answer 1

Answer:

3)x=60(vertically opposite angle)

y+x+40=180(angle sum property of triangle)

y+60+40=180

y+100=180

y=180-100

y=80

6)y+x=125(exterior angle property)

y+x+x=180(angle sum property of triangle)

125+x=180(from above)

x=180-125

x=55

now

y+x=125

y=125-x

y=125-55

y=70

8)x=60+50(exterior angle property)

x=110

x+y=180(linear pair)

110+y=180

y=180-110=70