Question

20. If the vertical angle of an isosceles triangle is 70°, then its base angles measure​

Answer 1

Answer:

base angle will be equal

Step-by-step explanation:

70 +x+x=180

x=55.

base angle =55

Answer 2

Answer:

55 degree

Step-by-step explanation:

by angle sum property 180 degree total

since its isosceles two angles are same

therefore

x+x+70=180

2x=110

x=55