lesson4 week 1 maths

Q1)a=angles in an triangle sum up to 180 degrees 

     b=vertically opposite angles are equal

     c=angles on a straight line sum up to 180 degrees

      d=angles around a point sum to 360 degrees

     e=in an isosceles triangle two angles are equal

Q2) a) a=71 b=63 b) d=43 e=37 f=100

      c) g=51 h=90 I=39

Q3) a)p=47 b)q=124 c)r=120 d)s=49

      e)t=128 f)u=284 g)v=49 h)w=55

Q4)c=43.8 d=32

Q5)x=24

Q6)y=128 or 123