Answer:
18 = 3.2
Step-by-step explanation:
Answer:45
Step-by-step explanation:
Answer:
Step-by-step explanation:
a^2+ab+a
a(a+b+1)
Answer:
127°
Step-by-step explanation:
In a quadrilateral, sum of four angles is 360°.
Consider the fourth angle x.
so,
55° + 73° + 105° + x = 360°
x = 360° - 233°
x = 127°