Question

please answer the question fast

Answer 1

In quadrilateral

using Angle Sum property, we have

(3x+10°)+(3x+4°)+(50°+x)+(5x+8°)=360°,

12x+72°=360°,

12x=360°-72°,

then

12x=288°,

x=288°/12,

x=24°

therefore

angle DAB=3x+4,

angle DAB =3×24°+4°,

angle DAB =76°,

angle ADB=180°-76°-50°,

angle ADB=54°