Question

prove that 'in a quadrilateral, the sum of exterior angles is 360? ​

Answer 1

Answer:

⟹∠DAC+∠ADC+∠DCA=180°

Similarly, ∠CAB+∠ABC+∠BCA=180°

⟹∠DAC+∠ADC+∠DCA+∠CAB+∠ABC+∠BCA=180°+180°

⟹(∠DAC+∠CAB)+(∠BCA+∠DCA)+∠ADC+∠ABC=360°

⟹∠DAB+∠BCD+∠CDA+∠ABC=360°

Q. E. D.

Step-by-step explanation:

Answer 2

Step-by-step explanation:

I hope this will help you