Question

67. Prove that the angles of an equilateral triangle are 60° each​

Answer 1

Answer:

sum of equilateral triangle =180⁰ s

Step-by-step explanation:

so,60⁰+60⁰60⁰=180⁰

hence proved that the angles of an equilateral triangle are 60⁰ each

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Answer 2

Step-by-step explanation:

in equ.∆all sides are = .

so angle a = angle b= angle c

it means we can write angle a,b,c=x

Now,

Angle a+b+c =180(lpa)

x+x+x=180

3x=180

x=180/3

x=60

it means all angles in equal.∆ is 60° each.