Question

one of the two equal angles of an isosceles triangle measures 55 degree determine the other angle​

Answer 1

Answer:

the other angle 70°

Step-by-step explanation:                                                                                                        as in an isosceles triangle two angles are equal

one angle is 55° so the second angle is also 55°

hence by using angle sum proper we get x

55°+55°+x=180°

which gives ∠x=70°