Question

how cam I prove the each angle of an equilateral tringle is 60 degree?​

Answer 1

Step-by-step explanation:

let a triangle ABC in this all sides are equal then angle opposite to equal sides are equal

as we know that sum of all angle of triangle is equal to 180 so

angle A +angle B +angle C =180

as we know that angle a = b=c

angle a+ angle a + angle a =180

3 angle a =180

angle a =180/3

angle a= 60

hence all angle of a equilteral triangle are equal than all are of 60°

hence prove

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