Geometry
Complete the reasons and use them to fill in the answers
Question | Answer | Reason |
| A=150-30=180 | Angles on a straight line… |
| B=54+54=108 | Vertically opposite angles… |
| C+90+20+100=360 c+210=360 C=360-210= =150 | Angles around a point… |
| d+38+114=180 d+152=180 D=180-152 28 | Angles in a triangle… |
| E=40+70+70=180 | Angles in a triangle… |
| F=120+60=180 60+60+60=180 | Equilateral triangles…
Angles in a triangle…
Angles on a straight line…
|
| g+54+68=180 G=58 | Angles on a straight line…
Angles in a triangle… |
| H=111+69=180 69+69=138+42=180 | Isosceles triangles…
Angles in a triangle…
Angles on a straight line…
|
