Question

11. The given figure has been made by using
two triangles.
Prove that:
angleA+ angleB+ angleC+ angleD+ angleE+ angleF = 360°​

Answer 1

Step-by-step explanation:

sorry I didn't know your questions answere but next time sure

Answer 2

Step-by-step explanation:

We know that the sum of all the angles in triangle ACE is 180

∘

.

∠A+∠C+∠E=180

∘

..(1)

We know that the sum of all the angles in triangle BDF is 180

∘

.

∠B+∠D+∠F=180

∘

..(2)

Now by adding both equations (1) and (2) we get

∠A+∠C+∠E+∠B+∠D+∠F=180

∘

+180

∘

On further calculation

∠A+∠B+∠C+∠D+∠E+∠F=360

∘

Therefore, it is proved that ∠A+∠B+∠C+∠D+∠E+∠F=360

∘

.