An exterior angle at the base of an isosceles triangle is always

1: obtuse
2: acute
3: right

first to answer gets the brainlist answer

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

What is not true about kl and mn? what is mn? (show )

Find the value of x. give reasons to justify your solutions! c ∈ ae