Question

Construct an equilateral triangle each of whose side measures 6.2 cm measure each one of its angles

Answer 1

in an equilateral triangle all the the sides as well as angles are equal if one of its side is 6.2cm then obviously all the sides are also equal.
and as we know that all the angles are also equal then
 let us take the angles be x 
s+s+s=180(angle sum property of a triangle)
also x+x+x=180
==3x=180
==x=180/3    x=60 hence we get that the angles are 60

Answer 2

Step-by-step explanation:

the answer is in the attachment