Question

can anyone tell me the answer of no 2,4,and 6​

Answer 1

(ii) We know that,

An exterior angle of a triangle is equal to the sum of the two opposite interior angles. 

120° = (2x° + x°)

→ 120° = 3x°

∴ x° = 40°

(iv) We know that, straight angle = 180° 

130° + z° = 180°

∴ z° = 50°

140° + y° = 180°

∴ y° = 40°

The sum of all three angles of any triangle equals = 180°

x° + y° + z° = 180°

→ x° + 40° + 50° = 180°

∴ x° = 90°

(vi) We know that,

An exterior angle of a triangle is equal to the sum of the two opposite interior angles. 

x° + x° = 130°

→ 2x° = 130°

∴ x° = 65°