Calculate the vertical angle of an isosceles triangle if one of its base angles is 48°

Both base angles are 48°

Total angles in a triangle =180°

180° - 2 ∙ 48° = 180° - 96° = 84°

I need a more understanding workings

How did u get 96 degree

2.48 gives you 96 degrees

180_2.48=180°-96=84°

Thank you,I understand now

First 180-2.48=180-96=84

The dot near the 48 means multiply