Question

(a)
the measurements of three angles are same

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Answer 1

Answer:

Sum of three angles of a triangle =180°

Let angle1 =angle2=angle3 be x.

So, x+x+x=180°

or,3x=180°

or,x=60°

Hence,the measurements of three angles are 60°.

Answer 2

Answer:

proof each angle is of 60⁰

=>Side +side+side %=area of equilateral triangle

=60⁰ +60⁰+60⁰

=120⁰+60⁰

180⁰

HENCE PROVED

the sum of every triangle also equilateral triangle is 180⁰

Step-by-step explanation:

equilateral triangle