Question

1. Fill in the blanks. a) The sum of all the angles of a triangle is equal to ?
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Answer 1

Step-by-step explanation:

the sum of all the angles of triangle is 180 degrees

Answer 2

Solution :-

In a Euclidean space, the sum of angles of a triangle equals the straight angle (180 degrees, π radians, two right angles, or a half-turn).

180 is Answer