Question

If you have a star ABCDE.Then angle(A+B+C+D+E)=how many right angles?The answer might be 2 but I need the explanation and reason!
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Answer 1

Answer:

Answer is 2

Step-by-step explanation:

As there are five Vertices ABCDE and if we join them together we will get a pentagon. There are 3 angles formed by its diagonals.

so measure of angle of pentagon =

{(n-2)*180}/5 =

{(5-2)*180}/5=

(3*180)/5=

108.

there are 3 angles at 5 vertices so

108/3= 36.

and sum of all 5 angles are 180.

to make 180 there ars only two right angles.

so answer is 2.