Answer:
24
Step-by-step explanation:
6×5=30
6*4=24
you have to find more then half which would be 3:6 so it's more then 15 but less then 30
X is one angle
X+78 is the second angle
Add them together
2x+78=90
Subtract 78 from both sides
2x=12
X=6
One angle is 6 the other angle is 84
c&b
5^2
=25
22.057
Round to 22
154.4/7 = 22.057