Question

find the value of the unkown X in the following triangles​

Answer 1

Answer:

(ii) ∠x=60°

(iii) ∠x=40°

Step-by-step explanation:

Point to Remember-

$\color{black}\boxed{\colorbox{saffron}{Angle\:Sum\:Property=180°}}$

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(ii)

$x + 90° + 30° = 180° \\ \\ x + 120° = 180° \\ \\ x = 180° - 120° \\ \\ x =60 °$

So, ∠x=60°

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(iii)

$30° + 110° + x = 180° \\ \\ 140° + x = 180° \\ \\ x = 180° - 140° \\ \\ x = 40°$

So, ∠x= 40°