Question

anneyong armies pls help me with this question with full procedure ​

Answer 1

Answer:

$\red { \tt\angle \: f = 60 \degree}$

Explanation:

$\tt{\angle \: c = 180 \degree - \angle \: d} \: ( sum\:of \: co - int. \: angles \: is \: 180 \degree) \\ \tt{\angle \: c = 180 \degree - 120 \degree} = \pink {60 \degree} \\ \tt{ \angle \: f = \angle \: c \: (opposite \: angles \: are \: equal)} \\ \pink {\tt \therefore \angle \: f = 60 \degree}$