25 points please help quick

ABC is an isosceles triangle.

Solve for x. In your final answer, include all of the necessary calculations

x = 105

Step-by-step explanation:

triangle has 180

180 -30 = 150

150/2 = 75

angle with x has 180

180-75 = 105

x = 105

x = 105

Step-by-step explanation:

Since the triangle is isosceles then ∠ A = ∠ C, thus

∠ A = (180 - 30 )/ 2 = 150 / 2 = 75°

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

x is an exterior angle, thus

x = 75 + 30 = 105

1/4 because there is 4 grades.