Question

PLEASE HELP MEDAL AND FAN 2 MULTIPLE CHOICE QUESTIONS ONLY

Answer 1

Join BE and apply `triangle exterior angle theorem`

Answer 2

Or if you're formula oriented simply use below :
\(\text{external angle } = \dfrac{\text{(far arc) - (near arc)}}{2} = \dfrac{100-30}{2}\)

Answer 3

but what did u get as an aswer