Question

Geometry help greatly needed, check photo for more information! <3

Answer 1

`\huge\boxed{\sf x = 55\°}`

Explanation:

When a quadrilateral is inscribed in a circle, the opposite angles of it add up to 180 degrees.

Here,

∠DCB + ∠DAB = 180 (Opposite angles of a quad inscribed in a circle.)

Given that: ∠DCB = 135° and ∠DAB = x

135 + x = 180

Subtract 135 to both sides

x = 180 - 135

x = 55°

`\rule[225]{225}{2}`

Hope this helped!

~AH1807