Question

I WILL GIVE YOU 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Answer 1

78°

Explanation:

the whole measure of a triangle =180° =3angles plus together

the 1st + 2nd angle = 90°+12°=102°

the 3rd angle = 180°-102°=78°

Answer 2

90+12=102

180 (all angles of a triangle are 180 degrees) - 102 (the other angles) =78 (missing angle)

The answer is 78.