Question

12. In the adjoining figure,l// m. Find the
values of a, b and c.

Answer 1

Answer:

a=45°(alternate angle)

b=55°(alternate angle)

c+45°+55°=180(angle sum of property of triangle)

y=80°

Answer 2

Step-by-step explanation:

● Sol :-

$\textbf{Answer 1}$ =>

☆______a + 120 + 40 = 180°

☆______a = 180° - 160°

☆______ a = 20°

☆_______b = 40 ° [ Adjective Angle]

☆________ c = 180 ° - 40° + 20° = 120°

$\textbf{Answer 2}$ = >

☆______a = 45° ( Adjective Angle)

☆______c = 55° ( Adjective Angle)

☆______ b = 180° - 45° + 55° = 80°