Question

i) DAB+ ABC + BCD + CDA ​

Answer 1

Answer:

∠DAB + ∠ABC + ∠BCD + ∠CDA = 360°

Step-by-step explanation:

The given quadrilateral is divided into two triangles by the diagonal AC.

Therefore, the sum of all it's interior angles is two times the sum of the interior angles of triangle.

∴ ∠DAB + ∠ABC + ∠BCD + ∠CDA = 2.180° = 360°

Answer 2

in the given figure abcd is a

quardilateral so

sum of its all angle = 360

so DAB +ABC+BCD+ CDA =360