Answer:
B. x=180-2(56)
Step-by-step explanation:
Isosceles triangles have 2 angles of equal measure and 1 different measure. we add both measures or multiply them by 2 and then subtract them from 180 (sum of all angle measurements in a triangle) to find the missing measure
Answer:
its the 3rd one
Step-by-step explanation:
The two angles form a straight line and need to equal 180 degrees
180 - 61 = 119
The missing angle is 119 degrees
