The triangle sum theorem says all 3 interior angles must equal 180 degrees.
so, 43 + 35 = 78. [ 180 - 78 = 102 degrees for the missing angles shared by the 2 triangles.
102 + 18 = 120. [180 - 120 = 60}
leaving the measure of Angle A as 60 degrees.
Answer:
0.3
Step-by-step explanation:
x is the number to be added to 0.7 to have a sum of 1.



Answer:
8.54
Step-by-step explanation: