The sum of all three angles of a triangle is always 180 degrees.
Step-by-step explanation:
4)
45 + 35.8 = a
180 - a = ?
5)
100 + 40.7 = a
6)
90 + 16.5 = a
ANSWER:
4) x = 99.2 (a is 80.8)
5) x = 39.3 (a is 140.7)
6) x = 73.5 (a is 106.5)
