Explanation:
(a) a° +60°+35°=180 (sum of angles in a triangle)
a° +95° = 180
a° = 180-95 = 85°
(b) 80°+75°+ b° = ( sum of angles in a triangle )
155°+b° =180°
b= 180-155 =25°
(c) 61°+73°+c° = 180°
134° + c° = 180°
c° = 180-134= 46°
(d) since this is a right angled triangle
d°+ 37° + 90° = 180°
127°+ d° = 180°
d° = 180- 127= 53°
(e) 11°+132° +e° = 180°
143° + e° = 180
e° = 180-143 = 37°
(f) this is also a right angled triangle
44° +f° +90° 180°
134° + f° = 180
f ° = 180° - 144° = 36°