Bro this makes no sense can someone explain

Step-by-step explanation:

If AB = AD, then you have that triangle ABD is an isosceles triangle (it has two equal sides). If it is isosceles, then the angles opposite to angles those equal sides must be equal. Then angle ADB = . and by the property of all internal angles of a triangle have to add to , we get that:

x = 110 degrees, y = 49 degrees.

Step-by-step explanation:

We have adjacent isosceles triangles here, so

x = 180 - 2(35) = 110 degrees, and

2y  + 82 = 180

so y = (180 - 82) / 2 = 49 degrees.

7

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2