Question

prove how the total of triangle are 180.​

Answer 1

Answer: probably because it is a polygon (polygons are made of straight lines, right angles) so triangle has 3 sides= 3 right angles and 1 right angle= 90 degrees so 90 x 3 = 180 degrees

Step-by-step explanation:

Answer 2

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Q. how the total of triangle are 180?

Ans: So, the angle sum ∠A + ∠B + ∠C is equal to the angle sum ∠A' + ∠B' + ∠C'. The three angles A', B', and C' form together a straight angle (they are along the line l). So, their angle sum is 180°.

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