सिद्ध करे की समबाहु त्रिभुज के प्रत्येक को 60० होता है
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Step-by-step explanation:
ABC is a .
we know that sum of angle of is 180.
let angle a+angle b+angle c=180
a+a+a=180
3a=180
a=60 then all angle are equal in equilateral .
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