Question

show that angles of a equilateral triangle are 60 degree each​

Answer 1

Answer:

The sum of angles of triagIe is 180

degree. As the sides are equal

the angles opposits them are equal

60 degree each

Answer 2

Step-by-step explanation:

Some of the angle =180°

so,

angle A+angleB+angle C =180°

GIVEN 《A=90°》

Now,

90°+angleB+angleC=180°

angle B+angleC=180°- 90°

angleB +angleC=90°

So Now,

angle A=90°

angle B=90°

angle C=90°

A =B=C=90°each

Angle A +angle B+angleC=180°

Angle a+angle b+angle c=180°

3 of angle a =180°

angle a=180°÷3

angle a=60°

Angle a=angle b=angle c

60° = 60° =60°